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Finding the Third Proportional to 200,599.31 and 311,613.75

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Solution

The third proportional to 200,599.31 and 311,613.75 is: 484,065.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,599.31 : 311,613.75 = 311,613.75 : x
  2. Step 2: Convert to fraction form
    200,599.31/311,613.75 = 311,613.75/x
  3. Step 3: Cross multiply
    200,599.31x = 311,613.75 × 311,613.75
  4. Step 4: Simplify right side
    200,599.31x = 97,103,129,189.06
  5. Step 5: Solve for x
    x = 97,103,129,189.06/200,599.31
  6. Step 6: Final answer
    x = 484,065.11

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.