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Finding the Third Proportional to 209,522 and 324,360.75

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Solution

The third proportional to 209,522 and 324,360.75 is: 502,142.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,522 : 324,360.75 = 324,360.75 : x
  2. Step 2: Convert to fraction form
    209,522/324,360.75 = 324,360.75/x
  3. Step 3: Cross multiply
    209,522x = 324,360.75 × 324,360.75
  4. Step 4: Simplify right side
    209,522x = 105,209,896,140.56
  5. Step 5: Solve for x
    x = 105,209,896,140.56/209,522
  6. Step 6: Final answer
    x = 502,142.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.