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Finding the Fourth Proportional to 376,556.68, 519,645.54 and 206,787.40

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Solution

The fourth proportional to 376,556.68, 519,645.54 and 206,787.40 is: 285,365.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,556.68 : 519,645.54 = 206,787.40 : x
  2. Step 2: Convert to fraction form
    376,556.68/519,645.54 = 206,787.40/x
  3. Step 3: Cross multiply
    376,556.68x = 519,645.54 × 206,787.40
  4. Step 4: Simplify right side
    376,556.68x = 107,456,150,138.20
  5. Step 5: Solve for x
    x = 107,456,150,138.20/376,556.68
  6. Step 6: Final answer
    x = 285,365.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.