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Finding the Third Proportional to 145,302 and 313,554

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Solution

The third proportional to 145,302 and 313,554 is: 676,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,302 : 313,554 = 313,554 : x
  2. Step 2: Convert to fraction form
    145,302/313,554 = 313,554/x
  3. Step 3: Cross multiply
    145,302x = 313,554 × 313,554
  4. Step 4: Simplify right side
    145,302x = 98,316,110,916
  5. Step 5: Solve for x
    x = 98,316,110,916/145,302
  6. Step 6: Final answer
    x = 676,632.88

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.