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Finding the Third Proportional to 197,268 and 431,440

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Solution

The third proportional to 197,268 and 431,440 is: 943,591.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,268 : 431,440 = 431,440 : x
  2. Step 2: Convert to fraction form
    197,268/431,440 = 431,440/x
  3. Step 3: Cross multiply
    197,268x = 431,440 × 431,440
  4. Step 4: Simplify right side
    197,268x = 186,140,473,600
  5. Step 5: Solve for x
    x = 186,140,473,600/197,268
  6. Step 6: Final answer
    x = 943,591.83

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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.