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Finding the Fourth Proportional to 262.82, 362.67 and 144.79

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Solution

The fourth proportional to 262.82, 362.67 and 144.79 is: 199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.82 : 362.67 = 144.79 : x
  2. Step 2: Convert to fraction form
    262.82/362.67 = 144.79/x
  3. Step 3: Cross multiply
    262.82x = 362.67 × 144.79
  4. Step 4: Simplify right side
    262.82x = 52,510.25
  5. Step 5: Solve for x
    x = 52,510.25/262.82
  6. Step 6: Final answer
    x = 199.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.