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Finding the Fourth Proportional to 375.53, 562.75 and 279.23

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Solution

The fourth proportional to 375.53, 562.75 and 279.23 is: 418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.53 : 562.75 = 279.23 : x
  2. Step 2: Convert to fraction form
    375.53/562.75 = 279.23/x
  3. Step 3: Cross multiply
    375.53x = 562.75 × 279.23
  4. Step 4: Simplify right side
    375.53x = 157,133.17
  5. Step 5: Solve for x
    x = 157,133.17/375.53
  6. Step 6: Final answer
    x = 418.44

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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.