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Finding the Third Proportional to 181,904 and 385,440

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Solution

The third proportional to 181,904 and 385,440 is: 816,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,904 : 385,440 = 385,440 : x
  2. Step 2: Convert to fraction form
    181,904/385,440 = 385,440/x
  3. Step 3: Cross multiply
    181,904x = 385,440 × 385,440
  4. Step 4: Simplify right side
    181,904x = 148,563,993,600
  5. Step 5: Solve for x
    x = 148,563,993,600/181,904
  6. Step 6: Final answer
    x = 816,716.47

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.