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Finding the Fourth Proportional to 508.68, 700.38 and 481.32

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Solution

The fourth proportional to 508.68, 700.38 and 481.32 is: 662.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.68 : 700.38 = 481.32 : x
  2. Step 2: Convert to fraction form
    508.68/700.38 = 481.32/x
  3. Step 3: Cross multiply
    508.68x = 700.38 × 481.32
  4. Step 4: Simplify right side
    508.68x = 337,106.90
  5. Step 5: Solve for x
    x = 337,106.90/508.68
  6. Step 6: Final answer
    x = 662.71

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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.