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Finding the Third Proportional to 98,478 and 147,681

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Solution

The third proportional to 98,478 and 147,681 is: 221,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,478 : 147,681 = 147,681 : x
  2. Step 2: Convert to fraction form
    98,478/147,681 = 147,681/x
  3. Step 3: Cross multiply
    98,478x = 147,681 × 147,681
  4. Step 4: Simplify right side
    98,478x = 21,809,677,761
  5. Step 5: Solve for x
    x = 21,809,677,761/98,478
  6. Step 6: Final answer
    x = 221,467.51

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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.