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Finding the Third Proportional to 988.13 and 1,436.25

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Solution

The third proportional to 988.13 and 1,436.25 is: 2,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988.13 : 1,436.25 = 1,436.25 : x
  2. Step 2: Convert to fraction form
    988.13/1,436.25 = 1,436.25/x
  3. Step 3: Cross multiply
    988.13x = 1,436.25 × 1,436.25
  4. Step 4: Simplify right side
    988.13x = 2,062,814.06
  5. Step 5: Solve for x
    x = 2,062,814.06/988.13
  6. Step 6: Final answer
    x = 2,087.60

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.