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Finding the Fourth Proportional to 308,428.96, 462,689.52 and 98,073.76

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Solution

The fourth proportional to 308,428.96, 462,689.52 and 98,073.76 is: 147,125.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,428.96 : 462,689.52 = 98,073.76 : x
  2. Step 2: Convert to fraction form
    308,428.96/462,689.52 = 98,073.76/x
  3. Step 3: Cross multiply
    308,428.96x = 462,689.52 × 98,073.76
  4. Step 4: Simplify right side
    308,428.96x = 45,377,700,939.00
  5. Step 5: Solve for x
    x = 45,377,700,939.00/308,428.96
  6. Step 6: Final answer
    x = 147,125.29

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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.