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Finding the Third Proportional to 218,208 and 296,160

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Solution

The third proportional to 218,208 and 296,160 is: 401,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,208 : 296,160 = 296,160 : x
  2. Step 2: Convert to fraction form
    218,208/296,160 = 296,160/x
  3. Step 3: Cross multiply
    218,208x = 296,160 × 296,160
  4. Step 4: Simplify right side
    218,208x = 87,710,745,600
  5. Step 5: Solve for x
    x = 87,710,745,600/218,208
  6. Step 6: Final answer
    x = 401,959.35

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.