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Finding the Third Proportional to 66,604 and 142,684

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Solution

The third proportional to 66,604 and 142,684 is: 305,668.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604 : 142,684 = 142,684 : x
  2. Step 2: Convert to fraction form
    66,604/142,684 = 142,684/x
  3. Step 3: Cross multiply
    66,604x = 142,684 × 142,684
  4. Step 4: Simplify right side
    66,604x = 20,358,723,856
  5. Step 5: Solve for x
    x = 20,358,723,856/66,604
  6. Step 6: Final answer
    x = 305,668.19

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.