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Finding the Fourth Proportional to 543,306.40, 815,037.24 and 169,358.56

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Solution

The fourth proportional to 543,306.40, 815,037.24 and 169,358.56 is: 254,062.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,306.40 : 815,037.24 = 169,358.56 : x
  2. Step 2: Convert to fraction form
    543,306.40/815,037.24 = 169,358.56/x
  3. Step 3: Cross multiply
    543,306.40x = 815,037.24 × 169,358.56
  4. Step 4: Simplify right side
    543,306.40x = 138,033,533,312.77
  5. Step 5: Solve for x
    x = 138,033,533,312.77/543,306.40
  6. Step 6: Final answer
    x = 254,062.04

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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.