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Finding the Fourth Proportional to 502,946.20, 754,160.10 and 187,240.60

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Solution

The fourth proportional to 502,946.20, 754,160.10 and 187,240.60 is: 280,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,946.20 : 754,160.10 = 187,240.60 : x
  2. Step 2: Convert to fraction form
    502,946.20/754,160.10 = 187,240.60/x
  3. Step 3: Cross multiply
    502,946.20x = 754,160.10 × 187,240.60
  4. Step 4: Simplify right side
    502,946.20x = 141,209,389,620.06
  5. Step 5: Solve for x
    x = 141,209,389,620.06/502,946.20
  6. Step 6: Final answer
    x = 280,764.40

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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.