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Finding the Third Proportional to 121,468 and 266,336

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Solution

The third proportional to 121,468 and 266,336 is: 583,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,468 : 266,336 = 266,336 : x
  2. Step 2: Convert to fraction form
    121,468/266,336 = 266,336/x
  3. Step 3: Cross multiply
    121,468x = 266,336 × 266,336
  4. Step 4: Simplify right side
    121,468x = 70,934,864,896
  5. Step 5: Solve for x
    x = 70,934,864,896/121,468
  6. Step 6: Final answer
    x = 583,979.85

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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.