Home / 221,633.28-331,035.66-200,540.88

Finding the Fourth Proportional to 221,633.28, 331,035.66 and 200,540.88

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Solution

The fourth proportional to 221,633.28, 331,035.66 and 200,540.88 is: 299,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,633.28 : 331,035.66 = 200,540.88 : x
  2. Step 2: Convert to fraction form
    221,633.28/331,035.66 = 200,540.88/x
  3. Step 3: Cross multiply
    221,633.28x = 331,035.66 × 200,540.88
  4. Step 4: Simplify right side
    221,633.28x = 66,386,182,567.78
  5. Step 5: Solve for x
    x = 66,386,182,567.78/221,633.28
  6. Step 6: Final answer
    x = 299,531.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.