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Finding the Fourth Proportional to 527.88, 791.44 and 239.16

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Solution

The fourth proportional to 527.88, 791.44 and 239.16 is: 358.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.88 : 791.44 = 239.16 : x
  2. Step 2: Convert to fraction form
    527.88/791.44 = 239.16/x
  3. Step 3: Cross multiply
    527.88x = 791.44 × 239.16
  4. Step 4: Simplify right side
    527.88x = 189,280.79
  5. Step 5: Solve for x
    x = 189,280.79/527.88
  6. Step 6: Final answer
    x = 358.57

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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.