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Finding the Fourth Proportional to 243,497.75, 336,026.34 and 136,067.79

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Solution

The fourth proportional to 243,497.75, 336,026.34 and 136,067.79 is: 187,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,497.75 : 336,026.34 = 136,067.79 : x
  2. Step 2: Convert to fraction form
    243,497.75/336,026.34 = 136,067.79/x
  3. Step 3: Cross multiply
    243,497.75x = 336,026.34 × 136,067.79
  4. Step 4: Simplify right side
    243,497.75x = 45,722,359,105.12
  5. Step 5: Solve for x
    x = 45,722,359,105.12/243,497.75
  6. Step 6: Final answer
    x = 187,773.23

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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.