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Finding the Fourth Proportional to 527.98, 791.98 and 162.78

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Solution

The fourth proportional to 527.98, 791.98 and 162.78 is: 244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.98 : 791.98 = 162.78 : x
  2. Step 2: Convert to fraction form
    527.98/791.98 = 162.78/x
  3. Step 3: Cross multiply
    527.98x = 791.98 × 162.78
  4. Step 4: Simplify right side
    527.98x = 128,918.50
  5. Step 5: Solve for x
    x = 128,918.50/527.98
  6. Step 6: Final answer
    x = 244.17

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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.