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Finding the Third Proportional to 147,688 and 324,912

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Solution

The third proportional to 147,688 and 324,912 is: 714,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,688 : 324,912 = 324,912 : x
  2. Step 2: Convert to fraction form
    147,688/324,912 = 324,912/x
  3. Step 3: Cross multiply
    147,688x = 324,912 × 324,912
  4. Step 4: Simplify right side
    147,688x = 105,567,807,744
  5. Step 5: Solve for x
    x = 105,567,807,744/147,688
  6. Step 6: Final answer
    x = 714,802.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.