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Finding the Fourth Proportional to 332, 458.32 and 201.12

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Solution

The fourth proportional to 332, 458.32 and 201.12 is: 277.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    332 : 458.32 = 201.12 : x
  2. Step 2: Convert to fraction form
    332/458.32 = 201.12/x
  3. Step 3: Cross multiply
    332x = 458.32 × 201.12
  4. Step 4: Simplify right side
    332x = 92,177.32
  5. Step 5: Solve for x
    x = 92,177.32/332
  6. Step 6: Final answer
    x = 277.64

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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.