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Finding the Third Proportional to 186,158 and 278,485

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Solution

The third proportional to 186,158 and 278,485 is: 416,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,158 : 278,485 = 278,485 : x
  2. Step 2: Convert to fraction form
    186,158/278,485 = 278,485/x
  3. Step 3: Cross multiply
    186,158x = 278,485 × 278,485
  4. Step 4: Simplify right side
    186,158x = 77,553,895,225
  5. Step 5: Solve for x
    x = 77,553,895,225/186,158
  6. Step 6: Final answer
    x = 416,602.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.