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Finding the Third Proportional to 231,028 and 354,891

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Solution

The third proportional to 231,028 and 354,891 is: 545,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,028 : 354,891 = 354,891 : x
  2. Step 2: Convert to fraction form
    231,028/354,891 = 354,891/x
  3. Step 3: Cross multiply
    231,028x = 354,891 × 354,891
  4. Step 4: Simplify right side
    231,028x = 125,947,621,881
  5. Step 5: Solve for x
    x = 125,947,621,881/231,028
  6. Step 6: Final answer
    x = 545,161.72

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.