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Finding the Fourth Proportional to 332.89, 459.31 and 201.91

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Solution

The fourth proportional to 332.89, 459.31 and 201.91 is: 278.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.89 : 459.31 = 201.91 : x
  2. Step 2: Convert to fraction form
    332.89/459.31 = 201.91/x
  3. Step 3: Cross multiply
    332.89x = 459.31 × 201.91
  4. Step 4: Simplify right side
    332.89x = 92,739.28
  5. Step 5: Solve for x
    x = 92,739.28/332.89
  6. Step 6: Final answer
    x = 278.59

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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.