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Finding the Fourth Proportional to 559.32, 833.30 and 531.78

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Solution

The fourth proportional to 559.32, 833.30 and 531.78 is: 792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.32 : 833.30 = 531.78 : x
  2. Step 2: Convert to fraction form
    559.32/833.30 = 531.78/x
  3. Step 3: Cross multiply
    559.32x = 833.30 × 531.78
  4. Step 4: Simplify right side
    559.32x = 443,132.27
  5. Step 5: Solve for x
    x = 443,132.27/559.32
  6. Step 6: Final answer
    x = 792.27

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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.