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Finding the Fourth Proportional to 510.74, 765.57 and 250.82

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Solution

The fourth proportional to 510.74, 765.57 and 250.82 is: 375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.74 : 765.57 = 250.82 : x
  2. Step 2: Convert to fraction form
    510.74/765.57 = 250.82/x
  3. Step 3: Cross multiply
    510.74x = 765.57 × 250.82
  4. Step 4: Simplify right side
    510.74x = 192,020.27
  5. Step 5: Solve for x
    x = 192,020.27/510.74
  6. Step 6: Final answer
    x = 375.96

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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.