Home / 279,504.20-419,197.41-89,981.48

Finding the Fourth Proportional to 279,504.20, 419,197.41 and 89,981.48

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Solution

The fourth proportional to 279,504.20, 419,197.41 and 89,981.48 is: 134,953.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,504.20 : 419,197.41 = 89,981.48 : x
  2. Step 2: Convert to fraction form
    279,504.20/419,197.41 = 89,981.48/x
  3. Step 3: Cross multiply
    279,504.20x = 419,197.41 × 89,981.48
  4. Step 4: Simplify right side
    279,504.20x = 37,720,001,267.98
  5. Step 5: Solve for x
    x = 37,720,001,267.98/279,504.20
  6. Step 6: Final answer
    x = 134,953.26

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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.