Home / 381,343.90-571,919.85-156,766.96

Finding the Fourth Proportional to 381,343.90, 571,919.85 and 156,766.96

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Solution

The fourth proportional to 381,343.90, 571,919.85 and 156,766.96 is: 235,110.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,343.90 : 571,919.85 = 156,766.96 : x
  2. Step 2: Convert to fraction form
    381,343.90/571,919.85 = 156,766.96/x
  3. Step 3: Cross multiply
    381,343.90x = 571,919.85 × 156,766.96
  4. Step 4: Simplify right side
    381,343.90x = 89,658,136,248.16
  5. Step 5: Solve for x
    x = 89,658,136,248.16/381,343.90
  6. Step 6: Final answer
    x = 235,110.98

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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.