Home / 238,910.28-329,688.96-131,480.16

Finding the Fourth Proportional to 238,910.28, 329,688.96 and 131,480.16

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Solution

The fourth proportional to 238,910.28, 329,688.96 and 131,480.16 is: 181,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,910.28 : 329,688.96 = 131,480.16 : x
  2. Step 2: Convert to fraction form
    238,910.28/329,688.96 = 131,480.16/x
  3. Step 3: Cross multiply
    238,910.28x = 329,688.96 × 131,480.16
  4. Step 4: Simplify right side
    238,910.28x = 43,347,557,211.03
  5. Step 5: Solve for x
    x = 43,347,557,211.03/238,910.28
  6. Step 6: Final answer
    x = 181,438.64

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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.