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Finding the Third Proportional to 218,722.50 and 478,593

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Solution

The third proportional to 218,722.50 and 478,593 is: 1,047,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,722.50 : 478,593 = 478,593 : x
  2. Step 2: Convert to fraction form
    218,722.50/478,593 = 478,593/x
  3. Step 3: Cross multiply
    218,722.50x = 478,593 × 478,593
  4. Step 4: Simplify right side
    218,722.50x = 229,051,259,649
  5. Step 5: Solve for x
    x = 229,051,259,649/218,722.50
  6. Step 6: Final answer
    x = 1,047,223.12

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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.