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Finding the Third Proportional to 190,028 and 401,416

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Solution

The third proportional to 190,028 and 401,416 is: 847,952.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,028 : 401,416 = 401,416 : x
  2. Step 2: Convert to fraction form
    190,028/401,416 = 401,416/x
  3. Step 3: Cross multiply
    190,028x = 401,416 × 401,416
  4. Step 4: Simplify right side
    190,028x = 161,134,805,056
  5. Step 5: Solve for x
    x = 161,134,805,056/190,028
  6. Step 6: Final answer
    x = 847,952.96

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.