Home / 238,678.29-329,364.76-131,252.85

Finding the Fourth Proportional to 238,678.29, 329,364.76 and 131,252.85

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Solution

The fourth proportional to 238,678.29, 329,364.76 and 131,252.85 is: 181,122.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,678.29 : 329,364.76 = 131,252.85 : x
  2. Step 2: Convert to fraction form
    238,678.29/329,364.76 = 131,252.85/x
  3. Step 3: Cross multiply
    238,678.29x = 329,364.76 × 131,252.85
  4. Step 4: Simplify right side
    238,678.29x = 43,230,063,439.57
  5. Step 5: Solve for x
    x = 43,230,063,439.57/238,678.29
  6. Step 6: Final answer
    x = 181,122.73

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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.