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Finding the Fourth Proportional to 508.68, 698.22 and 481.34

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Solution

The fourth proportional to 508.68, 698.22 and 481.34 is: 660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.68 : 698.22 = 481.34 : x
  2. Step 2: Convert to fraction form
    508.68/698.22 = 481.34/x
  3. Step 3: Cross multiply
    508.68x = 698.22 × 481.34
  4. Step 4: Simplify right side
    508.68x = 336,082.96
  5. Step 5: Solve for x
    x = 336,082.96/508.68
  6. Step 6: Final answer
    x = 660.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.