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Finding the Third Proportional to 158,565 and 330,246

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Solution

The third proportional to 158,565 and 330,246 is: 687,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,565 : 330,246 = 330,246 : x
  2. Step 2: Convert to fraction form
    158,565/330,246 = 330,246/x
  3. Step 3: Cross multiply
    158,565x = 330,246 × 330,246
  4. Step 4: Simplify right side
    158,565x = 109,062,420,516
  5. Step 5: Solve for x
    x = 109,062,420,516/158,565
  6. Step 6: Final answer
    x = 687,808.91

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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.