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Finding the Third Proportional to 158,480 and 330,012

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Solution

The third proportional to 158,480 and 330,012 is: 687,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,480 : 330,012 = 330,012 : x
  2. Step 2: Convert to fraction form
    158,480/330,012 = 330,012/x
  3. Step 3: Cross multiply
    158,480x = 330,012 × 330,012
  4. Step 4: Simplify right side
    158,480x = 108,907,920,144
  5. Step 5: Solve for x
    x = 108,907,920,144/158,480
  6. Step 6: Final answer
    x = 687,202.93

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.