Home / 239,286.72-330,200.64-143,736.96

Finding the Fourth Proportional to 239,286.72, 330,200.64 and 143,736.96

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Solution

The fourth proportional to 239,286.72, 330,200.64 and 143,736.96 is: 198,347.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,286.72 : 330,200.64 = 143,736.96 : x
  2. Step 2: Convert to fraction form
    239,286.72/330,200.64 = 143,736.96/x
  3. Step 3: Cross multiply
    239,286.72x = 330,200.64 × 143,736.96
  4. Step 4: Simplify right side
    239,286.72x = 47,462,036,183.65
  5. Step 5: Solve for x
    x = 47,462,036,183.65/239,286.72
  6. Step 6: Final answer
    x = 198,347.97

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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.