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Finding the Fourth Proportional to 443,354.40, 611,832.72 and 252,380.16

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Solution

The fourth proportional to 443,354.40, 611,832.72 and 252,380.16 is: 348,286.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,354.40 : 611,832.72 = 252,380.16 : x
  2. Step 2: Convert to fraction form
    443,354.40/611,832.72 = 252,380.16/x
  3. Step 3: Cross multiply
    443,354.40x = 611,832.72 × 252,380.16
  4. Step 4: Simplify right side
    443,354.40x = 154,414,439,766.84
  5. Step 5: Solve for x
    x = 154,414,439,766.84/443,354.40
  6. Step 6: Final answer
    x = 348,286.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.