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Finding the Fourth Proportional to 291,230.60, 436,845.90 and 231,744.20

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Solution

The fourth proportional to 291,230.60, 436,845.90 and 231,744.20 is: 347,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,230.60 : 436,845.90 = 231,744.20 : x
  2. Step 2: Convert to fraction form
    291,230.60/436,845.90 = 231,744.20/x
  3. Step 3: Cross multiply
    291,230.60x = 436,845.90 × 231,744.20
  4. Step 4: Simplify right side
    291,230.60x = 101,236,503,618.78
  5. Step 5: Solve for x
    x = 101,236,503,618.78/291,230.60
  6. Step 6: Final answer
    x = 347,616.30

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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.