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Finding the Fourth Proportional to 375.44, 517.59 and 348.71

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Solution

The fourth proportional to 375.44, 517.59 and 348.71 is: 480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.44 : 517.59 = 348.71 : x
  2. Step 2: Convert to fraction form
    375.44/517.59 = 348.71/x
  3. Step 3: Cross multiply
    375.44x = 517.59 × 348.71
  4. Step 4: Simplify right side
    375.44x = 180,486.22
  5. Step 5: Solve for x
    x = 180,486.22/375.44
  6. Step 6: Final answer
    x = 480.74

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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.