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Finding the Fourth Proportional to 154,446.80, 231,670.20 and 54,606.20

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Solution

The fourth proportional to 154,446.80, 231,670.20 and 54,606.20 is: 81,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,446.80 : 231,670.20 = 54,606.20 : x
  2. Step 2: Convert to fraction form
    154,446.80/231,670.20 = 54,606.20/x
  3. Step 3: Cross multiply
    154,446.80x = 231,670.20 × 54,606.20
  4. Step 4: Simplify right side
    154,446.80x = 12,650,629,275.24
  5. Step 5: Solve for x
    x = 12,650,629,275.24/154,446.80
  6. Step 6: Final answer
    x = 81,909.30

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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.