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Finding the Fourth Proportional to 375.09, 517.47 and 227.70

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Solution

The fourth proportional to 375.09, 517.47 and 227.70 is: 314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.09 : 517.47 = 227.70 : x
  2. Step 2: Convert to fraction form
    375.09/517.47 = 227.70/x
  3. Step 3: Cross multiply
    375.09x = 517.47 × 227.70
  4. Step 4: Simplify right side
    375.09x = 117,827.92
  5. Step 5: Solve for x
    x = 117,827.92/375.09
  6. Step 6: Final answer
    x = 314.13

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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.