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Finding the Third Proportional to 203,428 and 295,908

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Solution

The third proportional to 203,428 and 295,908 is: 430,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,428 : 295,908 = 295,908 : x
  2. Step 2: Convert to fraction form
    203,428/295,908 = 295,908/x
  3. Step 3: Cross multiply
    203,428x = 295,908 × 295,908
  4. Step 4: Simplify right side
    203,428x = 87,561,544,464
  5. Step 5: Solve for x
    x = 87,561,544,464/203,428
  6. Step 6: Final answer
    x = 430,430.15

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.