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Finding the Fourth Proportional to 389,954.14, 584,951.96 and 123,735.49

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Solution

The fourth proportional to 389,954.14, 584,951.96 and 123,735.49 is: 185,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,954.14 : 584,951.96 = 123,735.49 : x
  2. Step 2: Convert to fraction form
    389,954.14/584,951.96 = 123,735.49/x
  3. Step 3: Cross multiply
    389,954.14x = 584,951.96 × 123,735.49
  4. Step 4: Simplify right side
    389,954.14x = 72,379,316,244.02
  5. Step 5: Solve for x
    x = 72,379,316,244.02/389,954.14
  6. Step 6: Final answer
    x = 185,609.82

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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.