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Finding the Fourth Proportional to 528.47, 791.95 and 250.52

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Solution

The fourth proportional to 528.47, 791.95 and 250.52 is: 375.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.47 : 791.95 = 250.52 : x
  2. Step 2: Convert to fraction form
    528.47/791.95 = 250.52/x
  3. Step 3: Cross multiply
    528.47x = 791.95 × 250.52
  4. Step 4: Simplify right side
    528.47x = 198,400.67
  5. Step 5: Solve for x
    x = 198,400.67/528.47
  6. Step 6: Final answer
    x = 375.43

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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.