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Finding the Fourth Proportional to 308,281.38, 425,428.17 and 180,956.97

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Solution

The fourth proportional to 308,281.38, 425,428.17 and 180,956.97 is: 249,720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,281.38 : 425,428.17 = 180,956.97 : x
  2. Step 2: Convert to fraction form
    308,281.38/425,428.17 = 180,956.97/x
  3. Step 3: Cross multiply
    308,281.38x = 425,428.17 × 180,956.97
  4. Step 4: Simplify right side
    308,281.38x = 76,984,191,917.26
  5. Step 5: Solve for x
    x = 76,984,191,917.26/308,281.38
  6. Step 6: Final answer
    x = 249,720.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.