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Finding the Fourth Proportional to 281,150.96, 387,976.92 and 168,036.08

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Solution

The fourth proportional to 281,150.96, 387,976.92 and 168,036.08 is: 231,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,150.96 : 387,976.92 = 168,036.08 : x
  2. Step 2: Convert to fraction form
    281,150.96/387,976.92 = 168,036.08/x
  3. Step 3: Cross multiply
    281,150.96x = 387,976.92 × 168,036.08
  4. Step 4: Simplify right side
    281,150.96x = 65,194,120,767.27
  5. Step 5: Solve for x
    x = 65,194,120,767.27/281,150.96
  6. Step 6: Final answer
    x = 231,882.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.