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Finding the Fourth Proportional to 510.68, 766.40 and 250.82

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Solution

The fourth proportional to 510.68, 766.40 and 250.82 is: 376.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.68 : 766.40 = 250.82 : x
  2. Step 2: Convert to fraction form
    510.68/766.40 = 250.82/x
  3. Step 3: Cross multiply
    510.68x = 766.40 × 250.82
  4. Step 4: Simplify right side
    510.68x = 192,228.45
  5. Step 5: Solve for x
    x = 192,228.45/510.68
  6. Step 6: Final answer
    x = 376.42

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Double scale
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Similar ratio
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1.5x scale

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.