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Finding the Fourth Proportional to 766.84, 1,150.14 and 333.88

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Solution

The fourth proportional to 766.84, 1,150.14 and 333.88 is: 500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    766.84 : 1,150.14 = 333.88 : x
  2. Step 2: Convert to fraction form
    766.84/1,150.14 = 333.88/x
  3. Step 3: Cross multiply
    766.84x = 1,150.14 × 333.88
  4. Step 4: Simplify right side
    766.84x = 384,008.74
  5. Step 5: Solve for x
    x = 384,008.74/766.84
  6. Step 6: Final answer
    x = 500.77

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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.