Home / 238,721.76-329,426.85-131,285.38

Finding the Fourth Proportional to 238,721.76, 329,426.85 and 131,285.38

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Solution

The fourth proportional to 238,721.76, 329,426.85 and 131,285.38 is: 181,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,721.76 : 329,426.85 = 131,285.38 : x
  2. Step 2: Convert to fraction form
    238,721.76/329,426.85 = 131,285.38/x
  3. Step 3: Cross multiply
    238,721.76x = 329,426.85 × 131,285.38
  4. Step 4: Simplify right side
    238,721.76x = 43,248,929,184.45
  5. Step 5: Solve for x
    x = 43,248,929,184.45/238,721.76
  6. Step 6: Final answer
    x = 181,168.78

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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.