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Finding the Fourth Proportional to 437,070.60, 655,245.90 and 197,200.20

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Solution

The fourth proportional to 437,070.60, 655,245.90 and 197,200.20 is: 295,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,070.60 : 655,245.90 = 197,200.20 : x
  2. Step 2: Convert to fraction form
    437,070.60/655,245.90 = 197,200.20/x
  3. Step 3: Cross multiply
    437,070.60x = 655,245.90 × 197,200.20
  4. Step 4: Simplify right side
    437,070.60x = 129,214,622,529.18
  5. Step 5: Solve for x
    x = 129,214,622,529.18/437,070.60
  6. Step 6: Final answer
    x = 295,637.87

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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.