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Finding the Third Proportional to 109,890 and 236,844

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Solution

The third proportional to 109,890 and 236,844 is: 510,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890 : 236,844 = 236,844 : x
  2. Step 2: Convert to fraction form
    109,890/236,844 = 236,844/x
  3. Step 3: Cross multiply
    109,890x = 236,844 × 236,844
  4. Step 4: Simplify right side
    109,890x = 56,095,080,336
  5. Step 5: Solve for x
    x = 56,095,080,336/109,890
  6. Step 6: Final answer
    x = 510,465.74

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.