Home / 239,285.81-330,229.10-131,855.78

Finding the Fourth Proportional to 239,285.81, 330,229.10 and 131,855.78

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Solution

The fourth proportional to 239,285.81, 330,229.10 and 131,855.78 is: 181,969.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,285.81 : 330,229.10 = 131,855.78 : x
  2. Step 2: Convert to fraction form
    239,285.81/330,229.10 = 131,855.78/x
  3. Step 3: Cross multiply
    239,285.81x = 330,229.10 × 131,855.78
  4. Step 4: Simplify right side
    239,285.81x = 43,542,615,559.20
  5. Step 5: Solve for x
    x = 43,542,615,559.20/239,285.81
  6. Step 6: Final answer
    x = 181,969.07

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1.5x scale

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.