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Finding the Fourth Proportional to 360,785.29, 497,876.36 and 199,640.30

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Solution

The fourth proportional to 360,785.29, 497,876.36 and 199,640.30 is: 275,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,785.29 : 497,876.36 = 199,640.30 : x
  2. Step 2: Convert to fraction form
    360,785.29/497,876.36 = 199,640.30/x
  3. Step 3: Cross multiply
    360,785.29x = 497,876.36 × 199,640.30
  4. Step 4: Simplify right side
    360,785.29x = 99,396,183,227.96
  5. Step 5: Solve for x
    x = 99,396,183,227.96/360,785.29
  6. Step 6: Final answer
    x = 275,499.55

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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.