Home / 279,497.32-419,187.10-89,974.60

Finding the Fourth Proportional to 279,497.32, 419,187.10 and 89,974.60

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Solution

The fourth proportional to 279,497.32, 419,187.10 and 89,974.60 is: 134,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,497.32 : 419,187.10 = 89,974.60 : x
  2. Step 2: Convert to fraction form
    279,497.32/419,187.10 = 89,974.60/x
  3. Step 3: Cross multiply
    279,497.32x = 419,187.10 × 89,974.60
  4. Step 4: Simplify right side
    279,497.32x = 37,716,191,647.66
  5. Step 5: Solve for x
    x = 37,716,191,647.66/279,497.32
  6. Step 6: Final answer
    x = 134,942.95

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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.