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Finding the Third Proportional to 77,415 and 158,112

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Solution

The third proportional to 77,415 and 158,112 is: 322,927.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,415 : 158,112 = 158,112 : x
  2. Step 2: Convert to fraction form
    77,415/158,112 = 158,112/x
  3. Step 3: Cross multiply
    77,415x = 158,112 × 158,112
  4. Step 4: Simplify right side
    77,415x = 24,999,404,544
  5. Step 5: Solve for x
    x = 24,999,404,544/77,415
  6. Step 6: Final answer
    x = 322,927.14

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.