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Finding the Third Proportional to 139,482 and 305,046

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Solution

The third proportional to 139,482 and 305,046 is: 667,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,482 : 305,046 = 305,046 : x
  2. Step 2: Convert to fraction form
    139,482/305,046 = 305,046/x
  3. Step 3: Cross multiply
    139,482x = 305,046 × 305,046
  4. Step 4: Simplify right side
    139,482x = 93,053,062,116
  5. Step 5: Solve for x
    x = 93,053,062,116/139,482
  6. Step 6: Final answer
    x = 667,133.12

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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.