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Finding the Third Proportional to 236,442 and 518,820

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Solution

The third proportional to 236,442 and 518,820 is: 1,138,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,442 : 518,820 = 518,820 : x
  2. Step 2: Convert to fraction form
    236,442/518,820 = 518,820/x
  3. Step 3: Cross multiply
    236,442x = 518,820 × 518,820
  4. Step 4: Simplify right side
    236,442x = 269,174,192,400
  5. Step 5: Solve for x
    x = 269,174,192,400/236,442
  6. Step 6: Final answer
    x = 1,138,436.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.