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Finding the Third Proportional to 915.19 and 1,805.06

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Solution

The third proportional to 915.19 and 1,805.06 is: 3,560.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.19 : 1,805.06 = 1,805.06 : x
  2. Step 2: Convert to fraction form
    915.19/1,805.06 = 1,805.06/x
  3. Step 3: Cross multiply
    915.19x = 1,805.06 × 1,805.06
  4. Step 4: Simplify right side
    915.19x = 3,258,250.63
  5. Step 5: Solve for x
    x = 3,258,250.63/915.19
  6. Step 6: Final answer
    x = 3,560.20

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.