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Finding the Fourth Proportional to 375.30, 562.95 and 272.43

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Solution

The fourth proportional to 375.30, 562.95 and 272.43 is: 408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.30 : 562.95 = 272.43 : x
  2. Step 2: Convert to fraction form
    375.30/562.95 = 272.43/x
  3. Step 3: Cross multiply
    375.30x = 562.95 × 272.43
  4. Step 4: Simplify right side
    375.30x = 153,364.47
  5. Step 5: Solve for x
    x = 153,364.47/375.30
  6. Step 6: Final answer
    x = 408.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.