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Finding the Third Proportional to 69,346 and 147,908

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Solution

The third proportional to 69,346 and 147,908 is: 315,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,346 : 147,908 = 147,908 : x
  2. Step 2: Convert to fraction form
    69,346/147,908 = 147,908/x
  3. Step 3: Cross multiply
    69,346x = 147,908 × 147,908
  4. Step 4: Simplify right side
    69,346x = 21,876,776,464
  5. Step 5: Solve for x
    x = 21,876,776,464/69,346
  6. Step 6: Final answer
    x = 315,472.80

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.