Home / 238,820.20-329,558.78-131,372.76

Finding the Fourth Proportional to 238,820.20, 329,558.78 and 131,372.76

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Solution

The fourth proportional to 238,820.20, 329,558.78 and 131,372.76 is: 181,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,820.20 : 329,558.78 = 131,372.76 : x
  2. Step 2: Convert to fraction form
    238,820.20/329,558.78 = 131,372.76/x
  3. Step 3: Cross multiply
    238,820.20x = 329,558.78 × 131,372.76
  4. Step 4: Simplify right side
    238,820.20x = 43,295,046,510.83
  5. Step 5: Solve for x
    x = 43,295,046,510.83/238,820.20
  6. Step 6: Final answer
    x = 181,287.20

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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.