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Finding the Fourth Proportional to 361,489.40, 498,855.41 and 200,354.85

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Solution

The fourth proportional to 361,489.40, 498,855.41 and 200,354.85 is: 276,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,489.40 : 498,855.41 = 200,354.85 : x
  2. Step 2: Convert to fraction form
    361,489.40/498,855.41 = 200,354.85/x
  3. Step 3: Cross multiply
    361,489.40x = 498,855.41 × 200,354.85
  4. Step 4: Simplify right side
    361,489.40x = 99,948,100,842.24
  5. Step 5: Solve for x
    x = 99,948,100,842.24/361,489.40
  6. Step 6: Final answer
    x = 276,489.71

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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.