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Finding the Fourth Proportional to 262.85, 362.78 and 164.53

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Solution

The fourth proportional to 262.85, 362.78 and 164.53 is: 227.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.85 : 362.78 = 164.53 : x
  2. Step 2: Convert to fraction form
    262.85/362.78 = 164.53/x
  3. Step 3: Cross multiply
    262.85x = 362.78 × 164.53
  4. Step 4: Simplify right side
    262.85x = 59,688.44
  5. Step 5: Solve for x
    x = 59,688.44/262.85
  6. Step 6: Final answer
    x = 227.09

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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.