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Finding the Third Proportional to 120,828.75 and 264,897

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Solution

The third proportional to 120,828.75 and 264,897 is: 580,742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,828.75 : 264,897 = 264,897 : x
  2. Step 2: Convert to fraction form
    120,828.75/264,897 = 264,897/x
  3. Step 3: Cross multiply
    120,828.75x = 264,897 × 264,897
  4. Step 4: Simplify right side
    120,828.75x = 70,170,420,609
  5. Step 5: Solve for x
    x = 70,170,420,609/120,828.75
  6. Step 6: Final answer
    x = 580,742.75

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.