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Finding the Third Proportional to 139,231.13 and 303,459.75

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Solution

The third proportional to 139,231.13 and 303,459.75 is: 661,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,231.13 : 303,459.75 = 303,459.75 : x
  2. Step 2: Convert to fraction form
    139,231.13/303,459.75 = 303,459.75/x
  3. Step 3: Cross multiply
    139,231.13x = 303,459.75 × 303,459.75
  4. Step 4: Simplify right side
    139,231.13x = 92,087,819,870.06
  5. Step 5: Solve for x
    x = 92,087,819,870.06/139,231.13
  6. Step 6: Final answer
    x = 661,402.54

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.