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Finding the Fourth Proportional to 356,426.22, 491,747.07 and 203,354.46

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Solution

The fourth proportional to 356,426.22, 491,747.07 and 203,354.46 is: 280,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,426.22 : 491,747.07 = 203,354.46 : x
  2. Step 2: Convert to fraction form
    356,426.22/491,747.07 = 203,354.46/x
  3. Step 3: Cross multiply
    356,426.22x = 491,747.07 × 203,354.46
  4. Step 4: Simplify right side
    356,426.22x = 99,998,959,876.43
  5. Step 5: Solve for x
    x = 99,998,959,876.43/356,426.22
  6. Step 6: Final answer
    x = 280,560.05

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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.