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Finding the Fourth Proportional to 528.01, 791.89 and 157.73

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Solution

The fourth proportional to 528.01, 791.89 and 157.73 is: 236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.01 : 791.89 = 157.73 : x
  2. Step 2: Convert to fraction form
    528.01/791.89 = 157.73/x
  3. Step 3: Cross multiply
    528.01x = 791.89 × 157.73
  4. Step 4: Simplify right side
    528.01x = 124,900.46
  5. Step 5: Solve for x
    x = 124,900.46/528.01
  6. Step 6: Final answer
    x = 236.55

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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.