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Finding the Third Proportional to 155,856.75 and 336,036

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Solution

The third proportional to 155,856.75 and 336,036 is: 724,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,856.75 : 336,036 = 336,036 : x
  2. Step 2: Convert to fraction form
    155,856.75/336,036 = 336,036/x
  3. Step 3: Cross multiply
    155,856.75x = 336,036 × 336,036
  4. Step 4: Simplify right side
    155,856.75x = 112,920,193,296
  5. Step 5: Solve for x
    x = 112,920,193,296/155,856.75
  6. Step 6: Final answer
    x = 724,512.69

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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.