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Finding the Fourth Proportional to 527.61, 728.42 and 350.82

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Solution

The fourth proportional to 527.61, 728.42 and 350.82 is: 484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.61 : 728.42 = 350.82 : x
  2. Step 2: Convert to fraction form
    527.61/728.42 = 350.82/x
  3. Step 3: Cross multiply
    527.61x = 728.42 × 350.82
  4. Step 4: Simplify right side
    527.61x = 255,542.55
  5. Step 5: Solve for x
    x = 255,542.55/527.61
  6. Step 6: Final answer
    x = 484.34

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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.