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Finding the Fourth Proportional to 486.27, 729.39 and 332.49

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Solution

The fourth proportional to 486.27, 729.39 and 332.49 is: 498.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    486.27 : 729.39 = 332.49 : x
  2. Step 2: Convert to fraction form
    486.27/729.39 = 332.49/x
  3. Step 3: Cross multiply
    486.27x = 729.39 × 332.49
  4. Step 4: Simplify right side
    486.27x = 242,514.88
  5. Step 5: Solve for x
    x = 242,514.88/486.27
  6. Step 6: Final answer
    x = 498.72

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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.