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Finding the Third Proportional to 98,446 and 147,639

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Solution

The third proportional to 98,446 and 147,639 is: 221,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,446 : 147,639 = 147,639 : x
  2. Step 2: Convert to fraction form
    98,446/147,639 = 147,639/x
  3. Step 3: Cross multiply
    98,446x = 147,639 × 147,639
  4. Step 4: Simplify right side
    98,446x = 21,797,274,321
  5. Step 5: Solve for x
    x = 21,797,274,321/98,446
  6. Step 6: Final answer
    x = 221,413.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.