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Finding the Fourth Proportional to 677.82, 935.39 and 367.32

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Solution

The fourth proportional to 677.82, 935.39 and 367.32 is: 506.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.82 : 935.39 = 367.32 : x
  2. Step 2: Convert to fraction form
    677.82/935.39 = 367.32/x
  3. Step 3: Cross multiply
    677.82x = 935.39 × 367.32
  4. Step 4: Simplify right side
    677.82x = 343,587.45
  5. Step 5: Solve for x
    x = 343,587.45/677.82
  6. Step 6: Final answer
    x = 506.90

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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.