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Finding the Third Proportional to 436.88 and 725.25

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Solution

The third proportional to 436.88 and 725.25 is: 1,203.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.88 : 725.25 = 725.25 : x
  2. Step 2: Convert to fraction form
    436.88/725.25 = 725.25/x
  3. Step 3: Cross multiply
    436.88x = 725.25 × 725.25
  4. Step 4: Simplify right side
    436.88x = 525,987.56
  5. Step 5: Solve for x
    x = 525,987.56/436.88
  6. Step 6: Final answer
    x = 1,203.98

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.