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Finding the Fourth Proportional to 510.96, 765.37 and 327.42

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Solution

The fourth proportional to 510.96, 765.37 and 327.42 is: 490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.96 : 765.37 = 327.42 : x
  2. Step 2: Convert to fraction form
    510.96/765.37 = 327.42/x
  3. Step 3: Cross multiply
    510.96x = 765.37 × 327.42
  4. Step 4: Simplify right side
    510.96x = 250,597.45
  5. Step 5: Solve for x
    x = 250,597.45/510.96
  6. Step 6: Final answer
    x = 490.44

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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.