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Finding the Third Proportional to 158,873.50 and 330,815

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Solution

The third proportional to 158,873.50 and 330,815 is: 688,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,873.50 : 330,815 = 330,815 : x
  2. Step 2: Convert to fraction form
    158,873.50/330,815 = 330,815/x
  3. Step 3: Cross multiply
    158,873.50x = 330,815 × 330,815
  4. Step 4: Simplify right side
    158,873.50x = 109,438,564,225
  5. Step 5: Solve for x
    x = 109,438,564,225/158,873.50
  6. Step 6: Final answer
    x = 688,840.90

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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.