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Finding the Fourth Proportional to 356,341.92, 491,759.80 and 203,377.04

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Solution

The fourth proportional to 356,341.92, 491,759.80 and 203,377.04 is: 280,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,341.92 : 491,759.80 = 203,377.04 : x
  2. Step 2: Convert to fraction form
    356,341.92/491,759.80 = 203,377.04/x
  3. Step 3: Cross multiply
    356,341.92x = 491,759.80 × 203,377.04
  4. Step 4: Simplify right side
    356,341.92x = 100,012,652,514.99
  5. Step 5: Solve for x
    x = 100,012,652,514.99/356,341.92
  6. Step 6: Final answer
    x = 280,664.85

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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.