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Finding the Third Proportional to 133,172 and 285,928

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Solution

The third proportional to 133,172 and 285,928 is: 613,903.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,172 : 285,928 = 285,928 : x
  2. Step 2: Convert to fraction form
    133,172/285,928 = 285,928/x
  3. Step 3: Cross multiply
    133,172x = 285,928 × 285,928
  4. Step 4: Simplify right side
    133,172x = 81,754,821,184
  5. Step 5: Solve for x
    x = 81,754,821,184/133,172
  6. Step 6: Final answer
    x = 613,903.98

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.