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Finding the Third Proportional to 121,674 and 260,161.50

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Solution

The third proportional to 121,674 and 260,161.50 is: 556,273.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,674 : 260,161.50 = 260,161.50 : x
  2. Step 2: Convert to fraction form
    121,674/260,161.50 = 260,161.50/x
  3. Step 3: Cross multiply
    121,674x = 260,161.50 × 260,161.50
  4. Step 4: Simplify right side
    121,674x = 67,684,006,082.25
  5. Step 5: Solve for x
    x = 67,684,006,082.25/121,674
  6. Step 6: Final answer
    x = 556,273.37

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.