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Finding the Fourth Proportional to 221,168.89, 331,753.35 and 54,956.89

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Solution

The fourth proportional to 221,168.89, 331,753.35 and 54,956.89 is: 82,435.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,168.89 : 331,753.35 = 54,956.89 : x
  2. Step 2: Convert to fraction form
    221,168.89/331,753.35 = 54,956.89/x
  3. Step 3: Cross multiply
    221,168.89x = 331,753.35 × 54,956.89
  4. Step 4: Simplify right side
    221,168.89x = 18,232,132,363.08
  5. Step 5: Solve for x
    x = 18,232,132,363.08/221,168.89
  6. Step 6: Final answer
    x = 82,435.34

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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.