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Finding the Fourth Proportional to 498.27, 688.05 and 332.76

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Solution

The fourth proportional to 498.27, 688.05 and 332.76 is: 459.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.27 : 688.05 = 332.76 : x
  2. Step 2: Convert to fraction form
    498.27/688.05 = 332.76/x
  3. Step 3: Cross multiply
    498.27x = 688.05 × 332.76
  4. Step 4: Simplify right side
    498.27x = 228,955.52
  5. Step 5: Solve for x
    x = 228,955.52/498.27
  6. Step 6: Final answer
    x = 459.50

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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.