Home / 220,330.60-329,839.80-131,538.40

Finding the Fourth Proportional to 220,330.60, 329,839.80 and 131,538.40

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Solution

The fourth proportional to 220,330.60, 329,839.80 and 131,538.40 is: 196,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,330.60 : 329,839.80 = 131,538.40 : x
  2. Step 2: Convert to fraction form
    220,330.60/329,839.80 = 131,538.40/x
  3. Step 3: Cross multiply
    220,330.60x = 329,839.80 × 131,538.40
  4. Step 4: Simplify right side
    220,330.60x = 43,386,599,548.32
  5. Step 5: Solve for x
    x = 43,386,599,548.32/220,330.60
  6. Step 6: Final answer
    x = 196,915.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.