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Finding the Fourth Proportional to 215,491.92, 323,385.57 and 75,250.55

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Solution

The fourth proportional to 215,491.92, 323,385.57 and 75,250.55 is: 112,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,491.92 : 323,385.57 = 75,250.55 : x
  2. Step 2: Convert to fraction form
    215,491.92/323,385.57 = 75,250.55/x
  3. Step 3: Cross multiply
    215,491.92x = 323,385.57 × 75,250.55
  4. Step 4: Simplify right side
    215,491.92x = 24,334,940,387.64
  5. Step 5: Solve for x
    x = 24,334,940,387.64/215,491.92
  6. Step 6: Final answer
    x = 112,927.39

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1.5x scale

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.