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Finding the Fourth Proportional to 150,000.40, 224,636.10 and 79,724.80

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Solution

The fourth proportional to 150,000.40, 224,636.10 and 79,724.80 is: 119,393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,000.40 : 224,636.10 = 79,724.80 : x
  2. Step 2: Convert to fraction form
    150,000.40/224,636.10 = 79,724.80/x
  3. Step 3: Cross multiply
    150,000.40x = 224,636.10 × 79,724.80
  4. Step 4: Simplify right side
    150,000.40x = 17,909,068,145.28
  5. Step 5: Solve for x
    x = 17,909,068,145.28/150,000.40
  6. Step 6: Final answer
    x = 119,393.47

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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.