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Finding the Third Proportional to 197,402 and 281,340

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Solution

The third proportional to 197,402 and 281,340 is: 400,969.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,402 : 281,340 = 281,340 : x
  2. Step 2: Convert to fraction form
    197,402/281,340 = 281,340/x
  3. Step 3: Cross multiply
    197,402x = 281,340 × 281,340
  4. Step 4: Simplify right side
    197,402x = 79,152,195,600
  5. Step 5: Solve for x
    x = 79,152,195,600/197,402
  6. Step 6: Final answer
    x = 400,969.57

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.