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Finding the Third Proportional to 342.50 and 537.25

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Solution

The third proportional to 342.50 and 537.25 is: 842.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.50 : 537.25 = 537.25 : x
  2. Step 2: Convert to fraction form
    342.50/537.25 = 537.25/x
  3. Step 3: Cross multiply
    342.50x = 537.25 × 537.25
  4. Step 4: Simplify right side
    342.50x = 288,637.56
  5. Step 5: Solve for x
    x = 288,637.56/342.50
  6. Step 6: Final answer
    x = 842.74

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.