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Finding the Fourth Proportional to 262.68, 362.40 and 234.28

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Solution

The fourth proportional to 262.68, 362.40 and 234.28 is: 323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.68 : 362.40 = 234.28 : x
  2. Step 2: Convert to fraction form
    262.68/362.40 = 234.28/x
  3. Step 3: Cross multiply
    262.68x = 362.40 × 234.28
  4. Step 4: Simplify right side
    262.68x = 84,901.90
  5. Step 5: Solve for x
    x = 84,901.90/262.68
  6. Step 6: Final answer
    x = 323.21

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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.