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Finding the Fourth Proportional to 292,279.70, 438,200.85 and 159,310.10

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Solution

The fourth proportional to 292,279.70, 438,200.85 and 159,310.10 is: 238,845.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,279.70 : 438,200.85 = 159,310.10 : x
  2. Step 2: Convert to fraction form
    292,279.70/438,200.85 = 159,310.10/x
  3. Step 3: Cross multiply
    292,279.70x = 438,200.85 × 159,310.10
  4. Step 4: Simplify right side
    292,279.70x = 69,809,821,233.59
  5. Step 5: Solve for x
    x = 69,809,821,233.59/292,279.70
  6. Step 6: Final answer
    x = 238,845.95

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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.