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Finding the Fourth Proportional to 145,291.59, 217,937.05 and 38,675.57

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Solution

The fourth proportional to 145,291.59, 217,937.05 and 38,675.57 is: 58,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,291.59 : 217,937.05 = 38,675.57 : x
  2. Step 2: Convert to fraction form
    145,291.59/217,937.05 = 38,675.57/x
  3. Step 3: Cross multiply
    145,291.59x = 217,937.05 × 38,675.57
  4. Step 4: Simplify right side
    145,291.59x = 8,428,838,446.49
  5. Step 5: Solve for x
    x = 8,428,838,446.49/145,291.59
  6. Step 6: Final answer
    x = 58,013.26

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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.