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Finding the Third Proportional to 200,373.75 and 287,023.50

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Solution

The third proportional to 200,373.75 and 287,023.50 is: 411,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,373.75 : 287,023.50 = 287,023.50 : x
  2. Step 2: Convert to fraction form
    200,373.75/287,023.50 = 287,023.50/x
  3. Step 3: Cross multiply
    200,373.75x = 287,023.50 × 287,023.50
  4. Step 4: Simplify right side
    200,373.75x = 82,382,489,552.25
  5. Step 5: Solve for x
    x = 82,382,489,552.25/200,373.75
  6. Step 6: Final answer
    x = 411,144.12

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.