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Finding the Fourth Proportional to 766.52, 1,149 and 303.98

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Solution

The fourth proportional to 766.52, 1,149 and 303.98 is: 455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    766.52 : 1,149 = 303.98 : x
  2. Step 2: Convert to fraction form
    766.52/1,149 = 303.98/x
  3. Step 3: Cross multiply
    766.52x = 1,149 × 303.98
  4. Step 4: Simplify right side
    766.52x = 349,273.02
  5. Step 5: Solve for x
    x = 349,273.02/766.52
  6. Step 6: Final answer
    x = 455.66

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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.