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Finding the Third Proportional to 204,139.50 and 306,412.88

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Solution

The third proportional to 204,139.50 and 306,412.88 is: 459,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,139.50 : 306,412.88 = 306,412.88 : x
  2. Step 2: Convert to fraction form
    204,139.50/306,412.88 = 306,412.88/x
  3. Step 3: Cross multiply
    204,139.50x = 306,412.88 × 306,412.88
  4. Step 4: Simplify right side
    204,139.50x = 93,888,849,965.77
  5. Step 5: Solve for x
    x = 93,888,849,965.77/204,139.50
  6. Step 6: Final answer
    x = 459,924.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.