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Finding the Third Proportional to 200,076 and 308,433

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Solution

The third proportional to 200,076 and 308,433 is: 475,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,076 : 308,433 = 308,433 : x
  2. Step 2: Convert to fraction form
    200,076/308,433 = 308,433/x
  3. Step 3: Cross multiply
    200,076x = 308,433 × 308,433
  4. Step 4: Simplify right side
    200,076x = 95,130,915,489
  5. Step 5: Solve for x
    x = 95,130,915,489/200,076
  6. Step 6: Final answer
    x = 475,473.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.