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Finding the Third Proportional to 78,048 and 169,236

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Solution

The third proportional to 78,048 and 169,236 is: 366,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,048 : 169,236 = 169,236 : x
  2. Step 2: Convert to fraction form
    78,048/169,236 = 169,236/x
  3. Step 3: Cross multiply
    78,048x = 169,236 × 169,236
  4. Step 4: Simplify right side
    78,048x = 28,640,823,696
  5. Step 5: Solve for x
    x = 28,640,823,696/78,048
  6. Step 6: Final answer
    x = 366,964.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.