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Finding the Third Proportional to 333,138 and 474,789

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Solution

The third proportional to 333,138 and 474,789 is: 676,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,138 : 474,789 = 474,789 : x
  2. Step 2: Convert to fraction form
    333,138/474,789 = 474,789/x
  3. Step 3: Cross multiply
    333,138x = 474,789 × 474,789
  4. Step 4: Simplify right side
    333,138x = 225,424,594,521
  5. Step 5: Solve for x
    x = 225,424,594,521/333,138
  6. Step 6: Final answer
    x = 676,670.31

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.