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Finding the Third Proportional to 121,746 and 265,638

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Solution

The third proportional to 121,746 and 265,638 is: 579,596.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,746 : 265,638 = 265,638 : x
  2. Step 2: Convert to fraction form
    121,746/265,638 = 265,638/x
  3. Step 3: Cross multiply
    121,746x = 265,638 × 265,638
  4. Step 4: Simplify right side
    121,746x = 70,563,547,044
  5. Step 5: Solve for x
    x = 70,563,547,044/121,746
  6. Step 6: Final answer
    x = 579,596.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.