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Finding the Fourth Proportional to 154,448.87, 231,679.77 and 54,609.89

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Solution

The fourth proportional to 154,448.87, 231,679.77 and 54,609.89 is: 81,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,448.87 : 231,679.77 = 54,609.89 : x
  2. Step 2: Convert to fraction form
    154,448.87/231,679.77 = 54,609.89/x
  3. Step 3: Cross multiply
    154,448.87x = 231,679.77 × 54,609.89
  4. Step 4: Simplify right side
    154,448.87x = 12,652,005,391.74
  5. Step 5: Solve for x
    x = 12,652,005,391.74/154,448.87
  6. Step 6: Final answer
    x = 81,917.11

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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.