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Finding the Third Proportional to 184,145 and 278,708

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Solution

The third proportional to 184,145 and 278,708 is: 421,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,145 : 278,708 = 278,708 : x
  2. Step 2: Convert to fraction form
    184,145/278,708 = 278,708/x
  3. Step 3: Cross multiply
    184,145x = 278,708 × 278,708
  4. Step 4: Simplify right side
    184,145x = 77,678,149,264
  5. Step 5: Solve for x
    x = 77,678,149,264/184,145
  6. Step 6: Final answer
    x = 421,831.43

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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.