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Finding the Fourth Proportional to 766.70, 1,150.25 and 246.84

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Solution

The fourth proportional to 766.70, 1,150.25 and 246.84 is: 370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    766.70 : 1,150.25 = 246.84 : x
  2. Step 2: Convert to fraction form
    766.70/1,150.25 = 246.84/x
  3. Step 3: Cross multiply
    766.70x = 1,150.25 × 246.84
  4. Step 4: Simplify right side
    766.70x = 283,926.48
  5. Step 5: Solve for x
    x = 283,926.48/766.70
  6. Step 6: Final answer
    x = 370.33

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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.