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Finding the Fourth Proportional to 465.97, 699.41 and 342.95

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Solution

The fourth proportional to 465.97, 699.41 and 342.95 is: 514.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.97 : 699.41 = 342.95 : x
  2. Step 2: Convert to fraction form
    465.97/699.41 = 342.95/x
  3. Step 3: Cross multiply
    465.97x = 699.41 × 342.95
  4. Step 4: Simplify right side
    465.97x = 239,862.66
  5. Step 5: Solve for x
    x = 239,862.66/465.97
  6. Step 6: Final answer
    x = 514.76

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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.