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Finding the Third Proportional to 218,176 and 320,088

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Solution

The third proportional to 218,176 and 320,088 is: 469,604.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,176 : 320,088 = 320,088 : x
  2. Step 2: Convert to fraction form
    218,176/320,088 = 320,088/x
  3. Step 3: Cross multiply
    218,176x = 320,088 × 320,088
  4. Step 4: Simplify right side
    218,176x = 102,456,327,744
  5. Step 5: Solve for x
    x = 102,456,327,744/218,176
  6. Step 6: Final answer
    x = 469,604.02

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.