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Finding the Fourth Proportional to 437,220.60, 655,830.90 and 156,766.20

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Solution

The fourth proportional to 437,220.60, 655,830.90 and 156,766.20 is: 235,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,220.60 : 655,830.90 = 156,766.20 : x
  2. Step 2: Convert to fraction form
    437,220.60/655,830.90 = 156,766.20/x
  3. Step 3: Cross multiply
    437,220.60x = 655,830.90 × 156,766.20
  4. Step 4: Simplify right side
    437,220.60x = 102,812,118,035.58
  5. Step 5: Solve for x
    x = 102,812,118,035.58/437,220.60
  6. Step 6: Final answer
    x = 235,149.30

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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.