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Finding the Third Proportional to 163,145 and 335,074

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Solution

The third proportional to 163,145 and 335,074 is: 688,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,145 : 335,074 = 335,074 : x
  2. Step 2: Convert to fraction form
    163,145/335,074 = 335,074/x
  3. Step 3: Cross multiply
    163,145x = 335,074 × 335,074
  4. Step 4: Simplify right side
    163,145x = 112,274,585,476
  5. Step 5: Solve for x
    x = 112,274,585,476/163,145
  6. Step 6: Final answer
    x = 688,188.95

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.