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Finding the Fourth Proportional to 343.24, 514.51 and 196.95

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Solution

The fourth proportional to 343.24, 514.51 and 196.95 is: 295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.24 : 514.51 = 196.95 : x
  2. Step 2: Convert to fraction form
    343.24/514.51 = 196.95/x
  3. Step 3: Cross multiply
    343.24x = 514.51 × 196.95
  4. Step 4: Simplify right side
    343.24x = 101,332.74
  5. Step 5: Solve for x
    x = 101,332.74/343.24
  6. Step 6: Final answer
    x = 295.22

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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.