Home / 238,869.12-329,632.20-131,439.36

Finding the Fourth Proportional to 238,869.12, 329,632.20 and 131,439.36

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Solution

The fourth proportional to 238,869.12, 329,632.20 and 131,439.36 is: 181,382.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,869.12 : 329,632.20 = 131,439.36 : x
  2. Step 2: Convert to fraction form
    238,869.12/329,632.20 = 131,439.36/x
  3. Step 3: Cross multiply
    238,869.12x = 329,632.20 × 131,439.36
  4. Step 4: Simplify right side
    238,869.12x = 43,326,645,403.39
  5. Step 5: Solve for x
    x = 43,326,645,403.39/238,869.12
  6. Step 6: Final answer
    x = 181,382.36

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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.