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Finding the Fourth Proportional to 215,522.88, 323,432.24 and 75,281.76

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Solution

The fourth proportional to 215,522.88, 323,432.24 and 75,281.76 is: 112,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,522.88 : 323,432.24 = 75,281.76 : x
  2. Step 2: Convert to fraction form
    215,522.88/323,432.24 = 75,281.76/x
  3. Step 3: Cross multiply
    215,522.88x = 323,432.24 × 75,281.76
  4. Step 4: Simplify right side
    215,522.88x = 24,348,548,267.94
  5. Step 5: Solve for x
    x = 24,348,548,267.94/215,522.88
  6. Step 6: Final answer
    x = 112,974.31

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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.