Home / 381,823.60-572,735.40-132,505.60

Finding the Fourth Proportional to 381,823.60, 572,735.40 and 132,505.60

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Solution

The fourth proportional to 381,823.60, 572,735.40 and 132,505.60 is: 198,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,823.60 : 572,735.40 = 132,505.60 : x
  2. Step 2: Convert to fraction form
    381,823.60/572,735.40 = 132,505.60/x
  3. Step 3: Cross multiply
    381,823.60x = 572,735.40 × 132,505.60
  4. Step 4: Simplify right side
    381,823.60x = 75,890,647,818.24
  5. Step 5: Solve for x
    x = 75,890,647,818.24/381,823.60
  6. Step 6: Final answer
    x = 198,758.40

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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.