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Finding the Third Proportional to 112,309 and 169,633

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Solution

The third proportional to 112,309 and 169,633 is: 256,215.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,309 : 169,633 = 169,633 : x
  2. Step 2: Convert to fraction form
    112,309/169,633 = 169,633/x
  3. Step 3: Cross multiply
    112,309x = 169,633 × 169,633
  4. Step 4: Simplify right side
    112,309x = 28,775,354,689
  5. Step 5: Solve for x
    x = 28,775,354,689/112,309
  6. Step 6: Final answer
    x = 256,215.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.