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Finding the Third Proportional to 307,908 and 474,502

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Solution

The third proportional to 307,908 and 474,502 is: 731,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,908 : 474,502 = 474,502 : x
  2. Step 2: Convert to fraction form
    307,908/474,502 = 474,502/x
  3. Step 3: Cross multiply
    307,908x = 474,502 × 474,502
  4. Step 4: Simplify right side
    307,908x = 225,152,148,004
  5. Step 5: Solve for x
    x = 225,152,148,004/307,908
  6. Step 6: Final answer
    x = 731,231.89

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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.