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Finding the Fourth Proportional to 437,765.60, 656,138.10 and 201,132.20

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Solution

The fourth proportional to 437,765.60, 656,138.10 and 201,132.20 is: 301,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,765.60 : 656,138.10 = 201,132.20 : x
  2. Step 2: Convert to fraction form
    437,765.60/656,138.10 = 201,132.20/x
  3. Step 3: Cross multiply
    437,765.60x = 656,138.10 × 201,132.20
  4. Step 4: Simplify right side
    437,765.60x = 131,970,499,556.82
  5. Step 5: Solve for x
    x = 131,970,499,556.82/437,765.60
  6. Step 6: Final answer
    x = 301,463.84

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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.