Home / 240,208.46-331,520.61-138,231.82

Finding the Fourth Proportional to 240,208.46, 331,520.61 and 138,231.82

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Solution

The fourth proportional to 240,208.46, 331,520.61 and 138,231.82 is: 190,778.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,208.46 : 331,520.61 = 138,231.82 : x
  2. Step 2: Convert to fraction form
    240,208.46/331,520.61 = 138,231.82/x
  3. Step 3: Cross multiply
    240,208.46x = 331,520.61 × 138,231.82
  4. Step 4: Simplify right side
    240,208.46x = 45,826,697,287.81
  5. Step 5: Solve for x
    x = 45,826,697,287.81/240,208.46
  6. Step 6: Final answer
    x = 190,778.86

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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.