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Finding the Fourth Proportional to 343.13, 517.82 and 341.03

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Solution

The fourth proportional to 343.13, 517.82 and 341.03 is: 514.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.13 : 517.82 = 341.03 : x
  2. Step 2: Convert to fraction form
    343.13/517.82 = 341.03/x
  3. Step 3: Cross multiply
    343.13x = 517.82 × 341.03
  4. Step 4: Simplify right side
    343.13x = 176,591.74
  5. Step 5: Solve for x
    x = 176,591.74/343.13
  6. Step 6: Final answer
    x = 514.66

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.