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Finding the Fourth Proportional to 438,279.84, 656,921.43 and 185,402.52

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Solution

The fourth proportional to 438,279.84, 656,921.43 and 185,402.52 is: 277,892.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,279.84 : 656,921.43 = 185,402.52 : x
  2. Step 2: Convert to fraction form
    438,279.84/656,921.43 = 185,402.52/x
  3. Step 3: Cross multiply
    438,279.84x = 656,921.43 × 185,402.52
  4. Step 4: Simplify right side
    438,279.84x = 121,794,888,564.00
  5. Step 5: Solve for x
    x = 121,794,888,564.00/438,279.84
  6. Step 6: Final answer
    x = 277,892.97

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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.