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Finding the Third Proportional to 121,467 and 265,040

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Solution

The third proportional to 121,467 and 265,040 is: 578,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,467 : 265,040 = 265,040 : x
  2. Step 2: Convert to fraction form
    121,467/265,040 = 265,040/x
  3. Step 3: Cross multiply
    121,467x = 265,040 × 265,040
  4. Step 4: Simplify right side
    121,467x = 70,246,201,600
  5. Step 5: Solve for x
    x = 70,246,201,600/121,467
  6. Step 6: Final answer
    x = 578,315.11

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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.