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Finding the Third Proportional to 154,618.50 and 328,191

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Solution

The third proportional to 154,618.50 and 328,191 is: 696,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,618.50 : 328,191 = 328,191 : x
  2. Step 2: Convert to fraction form
    154,618.50/328,191 = 328,191/x
  3. Step 3: Cross multiply
    154,618.50x = 328,191 × 328,191
  4. Step 4: Simplify right side
    154,618.50x = 107,709,332,481
  5. Step 5: Solve for x
    x = 107,709,332,481/154,618.50
  6. Step 6: Final answer
    x = 696,613.49

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.