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Finding the Third Proportional to 77,410 and 158,100

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Solution

The third proportional to 77,410 and 158,100 is: 322,898.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,410 : 158,100 = 158,100 : x
  2. Step 2: Convert to fraction form
    77,410/158,100 = 158,100/x
  3. Step 3: Cross multiply
    77,410x = 158,100 × 158,100
  4. Step 4: Simplify right side
    77,410x = 24,995,610,000
  5. Step 5: Solve for x
    x = 24,995,610,000/77,410
  6. Step 6: Final answer
    x = 322,898.98

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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.