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Finding the Fourth Proportional to 459.27, 633.84 and 272.80

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Solution

The fourth proportional to 459.27, 633.84 and 272.80 is: 376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.27 : 633.84 = 272.80 : x
  2. Step 2: Convert to fraction form
    459.27/633.84 = 272.80/x
  3. Step 3: Cross multiply
    459.27x = 633.84 × 272.80
  4. Step 4: Simplify right side
    459.27x = 172,912.86
  5. Step 5: Solve for x
    x = 172,912.86/459.27
  6. Step 6: Final answer
    x = 376.49

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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.