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Finding the Fourth Proportional to 696.85, 961.67 and 382.14

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Solution

The fourth proportional to 696.85, 961.67 and 382.14 is: 527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.85 : 961.67 = 382.14 : x
  2. Step 2: Convert to fraction form
    696.85/961.67 = 382.14/x
  3. Step 3: Cross multiply
    696.85x = 961.67 × 382.14
  4. Step 4: Simplify right side
    696.85x = 367,492.57
  5. Step 5: Solve for x
    x = 367,492.57/696.85
  6. Step 6: Final answer
    x = 527.36

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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.