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Finding the Fourth Proportional to 552.85, 763.32 and 343.29

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Solution

The fourth proportional to 552.85, 763.32 and 343.29 is: 473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.85 : 763.32 = 343.29 : x
  2. Step 2: Convert to fraction form
    552.85/763.32 = 343.29/x
  3. Step 3: Cross multiply
    552.85x = 763.32 × 343.29
  4. Step 4: Simplify right side
    552.85x = 262,040.12
  5. Step 5: Solve for x
    x = 262,040.12/552.85
  6. Step 6: Final answer
    x = 473.98

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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.