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Finding the Fourth Proportional to 342,432, 472,558 and 191,528.96

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Solution

The fourth proportional to 342,432, 472,558 and 191,528.96 is: 264,310.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,432 : 472,558 = 191,528.96 : x
  2. Step 2: Convert to fraction form
    342,432/472,558 = 191,528.96/x
  3. Step 3: Cross multiply
    342,432x = 472,558 × 191,528.96
  4. Step 4: Simplify right side
    342,432x = 90,508,542,279.68
  5. Step 5: Solve for x
    x = 90,508,542,279.68/342,432
  6. Step 6: Final answer
    x = 264,310.99

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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.