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Finding the Fourth Proportional to 361.08, 497.85 and 272.66

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Solution

The fourth proportional to 361.08, 497.85 and 272.66 is: 375.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.08 : 497.85 = 272.66 : x
  2. Step 2: Convert to fraction form
    361.08/497.85 = 272.66/x
  3. Step 3: Cross multiply
    361.08x = 497.85 × 272.66
  4. Step 4: Simplify right side
    361.08x = 135,741.29
  5. Step 5: Solve for x
    x = 135,741.29/361.08
  6. Step 6: Final answer
    x = 375.93

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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.