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Finding the Fourth Proportional to 227,231.20, 340,846.80 and 143,250.40

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Solution

The fourth proportional to 227,231.20, 340,846.80 and 143,250.40 is: 214,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,231.20 : 340,846.80 = 143,250.40 : x
  2. Step 2: Convert to fraction form
    227,231.20/340,846.80 = 143,250.40/x
  3. Step 3: Cross multiply
    227,231.20x = 340,846.80 × 143,250.40
  4. Step 4: Simplify right side
    227,231.20x = 48,826,440,438.72
  5. Step 5: Solve for x
    x = 48,826,440,438.72/227,231.20
  6. Step 6: Final answer
    x = 214,875.60

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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.