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Finding the Fourth Proportional to 239,067.54, 329,920.46 and 131,641.42

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Solution

The fourth proportional to 239,067.54, 329,920.46 and 131,641.42 is: 181,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,067.54 : 329,920.46 = 131,641.42 : x
  2. Step 2: Convert to fraction form
    239,067.54/329,920.46 = 131,641.42/x
  3. Step 3: Cross multiply
    239,067.54x = 329,920.46 × 131,641.42
  4. Step 4: Simplify right side
    239,067.54x = 43,431,197,841.45
  5. Step 5: Solve for x
    x = 43,431,197,841.45/239,067.54
  6. Step 6: Final answer
    x = 181,669.15

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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.