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Finding the Third Proportional to 68,313 and 148,290

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Solution

The third proportional to 68,313 and 148,290 is: 321,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,313 : 148,290 = 148,290 : x
  2. Step 2: Convert to fraction form
    68,313/148,290 = 148,290/x
  3. Step 3: Cross multiply
    68,313x = 148,290 × 148,290
  4. Step 4: Simplify right side
    68,313x = 21,989,924,100
  5. Step 5: Solve for x
    x = 21,989,924,100/68,313
  6. Step 6: Final answer
    x = 321,899.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.