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Finding the Fourth Proportional to 150,000.30, 225,000.45 and 143,088.30

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Solution

The fourth proportional to 150,000.30, 225,000.45 and 143,088.30 is: 214,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,000.30 : 225,000.45 = 143,088.30 : x
  2. Step 2: Convert to fraction form
    150,000.30/225,000.45 = 143,088.30/x
  3. Step 3: Cross multiply
    150,000.30x = 225,000.45 × 143,088.30
  4. Step 4: Simplify right side
    150,000.30x = 32,194,931,889.74
  5. Step 5: Solve for x
    x = 32,194,931,889.74/150,000.30
  6. Step 6: Final answer
    x = 214,632.45

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Half scale
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Double scale
Find fourth proportional to 150,001.30, 225,001.95 and 143,089.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.