Home / 377,849.78-521,422.53-205,764.30

Finding the Fourth Proportional to 377,849.78, 521,422.53 and 205,764.30

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Solution

The fourth proportional to 377,849.78, 521,422.53 and 205,764.30 is: 283,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,849.78 : 521,422.53 = 205,764.30 : x
  2. Step 2: Convert to fraction form
    377,849.78/521,422.53 = 205,764.30/x
  3. Step 3: Cross multiply
    377,849.78x = 521,422.53 × 205,764.30
  4. Step 4: Simplify right side
    377,849.78x = 107,290,141,889.68
  5. Step 5: Solve for x
    x = 107,290,141,889.68/377,849.78
  6. Step 6: Final answer
    x = 283,949.20

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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.