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Finding the Third Proportional to 139,430 and 201,045

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Solution

The third proportional to 139,430 and 201,045 is: 289,888.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,430 : 201,045 = 201,045 : x
  2. Step 2: Convert to fraction form
    139,430/201,045 = 201,045/x
  3. Step 3: Cross multiply
    139,430x = 201,045 × 201,045
  4. Step 4: Simplify right side
    139,430x = 40,419,092,025
  5. Step 5: Solve for x
    x = 40,419,092,025/139,430
  6. Step 6: Final answer
    x = 289,888.06

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.