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Finding the Third Proportional to 262.13 and 342.84

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Solution

The third proportional to 262.13 and 342.84 is: 448.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.13 : 342.84 = 342.84 : x
  2. Step 2: Convert to fraction form
    262.13/342.84 = 342.84/x
  3. Step 3: Cross multiply
    262.13x = 342.84 × 342.84
  4. Step 4: Simplify right side
    262.13x = 117,541.84
  5. Step 5: Solve for x
    x = 117,541.84/262.13
  6. Step 6: Final answer
    x = 448.42

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.