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Finding the Fourth Proportional to 243,518.43, 336,042.96 and 136,067.48

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Solution

The fourth proportional to 243,518.43, 336,042.96 and 136,067.48 is: 187,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,518.43 : 336,042.96 = 136,067.48 : x
  2. Step 2: Convert to fraction form
    243,518.43/336,042.96 = 136,067.48/x
  3. Step 3: Cross multiply
    243,518.43x = 336,042.96 × 136,067.48
  4. Step 4: Simplify right side
    243,518.43x = 45,724,517,058.73
  5. Step 5: Solve for x
    x = 45,724,517,058.73/243,518.43
  6. Step 6: Final answer
    x = 187,766.15

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1.5x scale

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.