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Finding the Fourth Proportional to 352,006.40, 527,491.20 and 299,129.60

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Solution

The fourth proportional to 352,006.40, 527,491.20 and 299,129.60 is: 448,253.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,006.40 : 527,491.20 = 299,129.60 : x
  2. Step 2: Convert to fraction form
    352,006.40/527,491.20 = 299,129.60/x
  3. Step 3: Cross multiply
    352,006.40x = 527,491.20 × 299,129.60
  4. Step 4: Simplify right side
    352,006.40x = 157,788,231,659.52
  5. Step 5: Solve for x
    x = 157,788,231,659.52/352,006.40
  6. Step 6: Final answer
    x = 448,253.87

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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.