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Finding the Fourth Proportional to 716.18, 1,074.17 and 196.22

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Solution

The fourth proportional to 716.18, 1,074.17 and 196.22 is: 294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.18 : 1,074.17 = 196.22 : x
  2. Step 2: Convert to fraction form
    716.18/1,074.17 = 196.22/x
  3. Step 3: Cross multiply
    716.18x = 1,074.17 × 196.22
  4. Step 4: Simplify right side
    716.18x = 210,767.29
  5. Step 5: Solve for x
    x = 210,767.29/716.18
  6. Step 6: Final answer
    x = 294.29

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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.