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Finding the Fourth Proportional to 459.05, 633.38 and 272.44

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Solution

The fourth proportional to 459.05, 633.38 and 272.44 is: 375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.05 : 633.38 = 272.44 : x
  2. Step 2: Convert to fraction form
    459.05/633.38 = 272.44/x
  3. Step 3: Cross multiply
    459.05x = 633.38 × 272.44
  4. Step 4: Simplify right side
    459.05x = 172,558.05
  5. Step 5: Solve for x
    x = 172,558.05/459.05
  6. Step 6: Final answer
    x = 375.91

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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.