Home / 238,621.40-329,299.66-129,725.96

Finding the Fourth Proportional to 238,621.40, 329,299.66 and 129,725.96

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Solution

The fourth proportional to 238,621.40, 329,299.66 and 129,725.96 is: 179,022.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,621.40 : 329,299.66 = 129,725.96 : x
  2. Step 2: Convert to fraction form
    238,621.40/329,299.66 = 129,725.96/x
  3. Step 3: Cross multiply
    238,621.40x = 329,299.66 × 129,725.96
  4. Step 4: Simplify right side
    238,621.40x = 42,718,714,521.17
  5. Step 5: Solve for x
    x = 42,718,714,521.17/238,621.40
  6. Step 6: Final answer
    x = 179,022.98

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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.