Home / 330,118.20-494,991.42-105,425.82

Finding the Fourth Proportional to 330,118.20, 494,991.42 and 105,425.82

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Solution

The fourth proportional to 330,118.20, 494,991.42 and 105,425.82 is: 158,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,118.20 : 494,991.42 = 105,425.82 : x
  2. Step 2: Convert to fraction form
    330,118.20/494,991.42 = 105,425.82/x
  3. Step 3: Cross multiply
    330,118.20x = 494,991.42 × 105,425.82
  4. Step 4: Simplify right side
    330,118.20x = 52,184,876,346.46
  5. Step 5: Solve for x
    x = 52,184,876,346.46/330,118.20
  6. Step 6: Final answer
    x = 158,079.37

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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.