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Finding the Fourth Proportional to 262.17, 394.02 and 243.07

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Solution

The fourth proportional to 262.17, 394.02 and 243.07 is: 365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.17 : 394.02 = 243.07 : x
  2. Step 2: Convert to fraction form
    262.17/394.02 = 243.07/x
  3. Step 3: Cross multiply
    262.17x = 394.02 × 243.07
  4. Step 4: Simplify right side
    262.17x = 95,773.46
  5. Step 5: Solve for x
    x = 95,773.46/262.17
  6. Step 6: Final answer
    x = 365.31

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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.