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Finding the Fourth Proportional to 332.26, 458.68 and 199.55

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Solution

The fourth proportional to 332.26, 458.68 and 199.55 is: 275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.26 : 458.68 = 199.55 : x
  2. Step 2: Convert to fraction form
    332.26/458.68 = 199.55/x
  3. Step 3: Cross multiply
    332.26x = 458.68 × 199.55
  4. Step 4: Simplify right side
    332.26x = 91,526.30
  5. Step 5: Solve for x
    x = 91,526.30/332.26
  6. Step 6: Final answer
    x = 275.47

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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.