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Finding the Third Proportional to 70,148 and 154,120

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Solution

The third proportional to 70,148 and 154,120 is: 338,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,148 : 154,120 = 154,120 : x
  2. Step 2: Convert to fraction form
    70,148/154,120 = 154,120/x
  3. Step 3: Cross multiply
    70,148x = 154,120 × 154,120
  4. Step 4: Simplify right side
    70,148x = 23,752,974,400
  5. Step 5: Solve for x
    x = 23,752,974,400/70,148
  6. Step 6: Final answer
    x = 338,612.28

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.