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Finding the Fourth Proportional to 398.67, 600.87 and 376.35

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Solution

The fourth proportional to 398.67, 600.87 and 376.35 is: 567.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.67 : 600.87 = 376.35 : x
  2. Step 2: Convert to fraction form
    398.67/600.87 = 376.35/x
  3. Step 3: Cross multiply
    398.67x = 600.87 × 376.35
  4. Step 4: Simplify right side
    398.67x = 226,134.47
  5. Step 5: Solve for x
    x = 226,134.47/398.67
  6. Step 6: Final answer
    x = 567.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.