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Finding the Fourth Proportional to 677.68, 935.19 and 367.18

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Solution

The fourth proportional to 677.68, 935.19 and 367.18 is: 506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.68 : 935.19 = 367.18 : x
  2. Step 2: Convert to fraction form
    677.68/935.19 = 367.18/x
  3. Step 3: Cross multiply
    677.68x = 935.19 × 367.18
  4. Step 4: Simplify right side
    677.68x = 343,380.73
  5. Step 5: Solve for x
    x = 343,380.73/677.68
  6. Step 6: Final answer
    x = 506.70

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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.