Home / 259,629.20-389,443.80-159,464.60

Finding the Fourth Proportional to 259,629.20, 389,443.80 and 159,464.60

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Solution

The fourth proportional to 259,629.20, 389,443.80 and 159,464.60 is: 239,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,629.20 : 389,443.80 = 159,464.60 : x
  2. Step 2: Convert to fraction form
    259,629.20/389,443.80 = 159,464.60/x
  3. Step 3: Cross multiply
    259,629.20x = 389,443.80 × 159,464.60
  4. Step 4: Simplify right side
    259,629.20x = 62,102,499,789.48
  5. Step 5: Solve for x
    x = 62,102,499,789.48/259,629.20
  6. Step 6: Final answer
    x = 239,196.90

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1.5x scale

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.