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Finding the Third Proportional to 139,974 and 177,237

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Solution

The third proportional to 139,974 and 177,237 is: 224,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974 : 177,237 = 177,237 : x
  2. Step 2: Convert to fraction form
    139,974/177,237 = 177,237/x
  3. Step 3: Cross multiply
    139,974x = 177,237 × 177,237
  4. Step 4: Simplify right side
    139,974x = 31,412,954,169
  5. Step 5: Solve for x
    x = 31,412,954,169/139,974
  6. Step 6: Final answer
    x = 224,419.92

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.