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Finding the Third Proportional to 219,318.75 and 321,194.25

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Solution

The third proportional to 219,318.75 and 321,194.25 is: 470,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,318.75 : 321,194.25 = 321,194.25 : x
  2. Step 2: Convert to fraction form
    219,318.75/321,194.25 = 321,194.25/x
  3. Step 3: Cross multiply
    219,318.75x = 321,194.25 × 321,194.25
  4. Step 4: Simplify right side
    219,318.75x = 103,165,746,233.06
  5. Step 5: Solve for x
    x = 103,165,746,233.06/219,318.75
  6. Step 6: Final answer
    x = 470,391.82

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.