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Finding the Fourth Proportional to 429.72, 593.19 and 272.58

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Solution

The fourth proportional to 429.72, 593.19 and 272.58 is: 376.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.72 : 593.19 = 272.58 : x
  2. Step 2: Convert to fraction form
    429.72/593.19 = 272.58/x
  3. Step 3: Cross multiply
    429.72x = 593.19 × 272.58
  4. Step 4: Simplify right side
    429.72x = 161,691.73
  5. Step 5: Solve for x
    x = 161,691.73/429.72
  6. Step 6: Final answer
    x = 376.27

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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.