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Finding the Fourth Proportional to 243,465.52, 335,976.13 and 136,036.43

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Solution

The fourth proportional to 243,465.52, 335,976.13 and 136,036.43 is: 187,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,465.52 : 335,976.13 = 136,036.43 : x
  2. Step 2: Convert to fraction form
    243,465.52/335,976.13 = 136,036.43/x
  3. Step 3: Cross multiply
    243,465.52x = 335,976.13 × 136,036.43
  4. Step 4: Simplify right side
    243,465.52x = 45,704,993,290.42
  5. Step 5: Solve for x
    x = 45,704,993,290.42/243,465.52
  6. Step 6: Final answer
    x = 187,726.76

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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.