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Finding the Third Proportional to 184,486 and 278,423

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Solution

The third proportional to 184,486 and 278,423 is: 420,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,486 : 278,423 = 278,423 : x
  2. Step 2: Convert to fraction form
    184,486/278,423 = 278,423/x
  3. Step 3: Cross multiply
    184,486x = 278,423 × 278,423
  4. Step 4: Simplify right side
    184,486x = 77,519,366,929
  5. Step 5: Solve for x
    x = 77,519,366,929/184,486
  6. Step 6: Final answer
    x = 420,191.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.