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Finding the Third Proportional to 133,078 and 286,892

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Solution

The third proportional to 133,078 and 286,892 is: 618,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078 : 286,892 = 286,892 : x
  2. Step 2: Convert to fraction form
    133,078/286,892 = 286,892/x
  3. Step 3: Cross multiply
    133,078x = 286,892 × 286,892
  4. Step 4: Simplify right side
    133,078x = 82,307,019,664
  5. Step 5: Solve for x
    x = 82,307,019,664/133,078
  6. Step 6: Final answer
    x = 618,487.05

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.