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Finding the Fourth Proportional to 239,665.56, 330,858.32 and 149,050.71

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Solution

The fourth proportional to 239,665.56, 330,858.32 and 149,050.71 is: 205,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,665.56 : 330,858.32 = 149,050.71 : x
  2. Step 2: Convert to fraction form
    239,665.56/330,858.32 = 149,050.71/x
  3. Step 3: Cross multiply
    239,665.56x = 330,858.32 × 149,050.71
  4. Step 4: Simplify right side
    239,665.56x = 49,314,666,760.15
  5. Step 5: Solve for x
    x = 49,314,666,760.15/239,665.56
  6. Step 6: Final answer
    x = 205,764.51

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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.