Home / 238,505.40-329,121.51-131,073.12

Finding the Fourth Proportional to 238,505.40, 329,121.51 and 131,073.12

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Solution

The fourth proportional to 238,505.40, 329,121.51 and 131,073.12 is: 180,872.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,505.40 : 329,121.51 = 131,073.12 : x
  2. Step 2: Convert to fraction form
    238,505.40/329,121.51 = 131,073.12/x
  3. Step 3: Cross multiply
    238,505.40x = 329,121.51 × 131,073.12
  4. Step 4: Simplify right side
    238,505.40x = 43,138,983,174.81
  5. Step 5: Solve for x
    x = 43,138,983,174.81/238,505.40
  6. Step 6: Final answer
    x = 180,872.14

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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.