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Finding the Third Proportional to 123,278 and 266,224

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Solution

The third proportional to 123,278 and 266,224 is: 574,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,278 : 266,224 = 266,224 : x
  2. Step 2: Convert to fraction form
    123,278/266,224 = 266,224/x
  3. Step 3: Cross multiply
    123,278x = 266,224 × 266,224
  4. Step 4: Simplify right side
    123,278x = 70,875,218,176
  5. Step 5: Solve for x
    x = 70,875,218,176/123,278
  6. Step 6: Final answer
    x = 574,921.87

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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.