Home / 238,722.64-329,437.12-131,299.90

Finding the Fourth Proportional to 238,722.64, 329,437.12 and 131,299.90

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Solution

The fourth proportional to 238,722.64, 329,437.12 and 131,299.90 is: 181,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,722.64 : 329,437.12 = 131,299.90 : x
  2. Step 2: Convert to fraction form
    238,722.64/329,437.12 = 131,299.90/x
  3. Step 3: Cross multiply
    238,722.64x = 329,437.12 × 131,299.90
  4. Step 4: Simplify right side
    238,722.64x = 43,255,060,912.29
  5. Step 5: Solve for x
    x = 43,255,060,912.29/238,722.64
  6. Step 6: Final answer
    x = 181,193.79

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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.