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Finding the Third Proportional to 66,988 and 146,823

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Solution

The third proportional to 66,988 and 146,823 is: 321,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988 : 146,823 = 146,823 : x
  2. Step 2: Convert to fraction form
    66,988/146,823 = 146,823/x
  3. Step 3: Cross multiply
    66,988x = 146,823 × 146,823
  4. Step 4: Simplify right side
    66,988x = 21,556,993,329
  5. Step 5: Solve for x
    x = 21,556,993,329/66,988
  6. Step 6: Final answer
    x = 321,803.81

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.