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Finding the Third Proportional to 815.63 and 1,146.38

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Solution

The third proportional to 815.63 and 1,146.38 is: 1,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    815.63 : 1,146.38 = 1,146.38 : x
  2. Step 2: Convert to fraction form
    815.63/1,146.38 = 1,146.38/x
  3. Step 3: Cross multiply
    815.63x = 1,146.38 × 1,146.38
  4. Step 4: Simplify right side
    815.63x = 1,314,175.64
  5. Step 5: Solve for x
    x = 1,314,175.64/815.63
  6. Step 6: Final answer
    x = 1,611.25

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.