Home / 279,921.66-419,882.51-92,933.16

Finding the Fourth Proportional to 279,921.66, 419,882.51 and 92,933.16

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Solution

The fourth proportional to 279,921.66, 419,882.51 and 92,933.16 is: 139,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,921.66 : 419,882.51 = 92,933.16 : x
  2. Step 2: Convert to fraction form
    279,921.66/419,882.51 = 92,933.16/x
  3. Step 3: Cross multiply
    279,921.66x = 419,882.51 × 92,933.16
  4. Step 4: Simplify right side
    279,921.66x = 39,021,008,018.37
  5. Step 5: Solve for x
    x = 39,021,008,018.37/279,921.66
  6. Step 6: Final answer
    x = 139,399.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.