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Finding the Third Proportional to 139,592 and 305,260

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Solution

The third proportional to 139,592 and 305,260 is: 667,543.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,592 : 305,260 = 305,260 : x
  2. Step 2: Convert to fraction form
    139,592/305,260 = 305,260/x
  3. Step 3: Cross multiply
    139,592x = 305,260 × 305,260
  4. Step 4: Simplify right side
    139,592x = 93,183,667,600
  5. Step 5: Solve for x
    x = 93,183,667,600/139,592
  6. Step 6: Final answer
    x = 667,543.04

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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.