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Finding the Fourth Proportional to 262.75, 362.64 and 159.25

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Solution

The fourth proportional to 262.75, 362.64 and 159.25 is: 219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.75 : 362.64 = 159.25 : x
  2. Step 2: Convert to fraction form
    262.75/362.64 = 159.25/x
  3. Step 3: Cross multiply
    262.75x = 362.64 × 159.25
  4. Step 4: Simplify right side
    262.75x = 57,750.42
  5. Step 5: Solve for x
    x = 57,750.42/262.75
  6. Step 6: Final answer
    x = 219.79

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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.