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Finding the Fourth Proportional to 527.31, 789.15 and 332.22

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Solution

The fourth proportional to 527.31, 789.15 and 332.22 is: 497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.31 : 789.15 = 332.22 : x
  2. Step 2: Convert to fraction form
    527.31/789.15 = 332.22/x
  3. Step 3: Cross multiply
    527.31x = 789.15 × 332.22
  4. Step 4: Simplify right side
    527.31x = 262,171.41
  5. Step 5: Solve for x
    x = 262,171.41/527.31
  6. Step 6: Final answer
    x = 497.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.