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Finding the Fourth Proportional to 486,168.72, 729,253.08 and 131,182.74

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Solution

The fourth proportional to 486,168.72, 729,253.08 and 131,182.74 is: 196,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,168.72 : 729,253.08 = 131,182.74 : x
  2. Step 2: Convert to fraction form
    486,168.72/729,253.08 = 131,182.74/x
  3. Step 3: Cross multiply
    486,168.72x = 729,253.08 × 131,182.74
  4. Step 4: Simplify right side
    486,168.72x = 95,665,417,187.84
  5. Step 5: Solve for x
    x = 95,665,417,187.84/486,168.72
  6. Step 6: Final answer
    x = 196,774.11

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Similar ratio
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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.