Home / 259,557.34-389,336.37-72,568.66

Finding the Fourth Proportional to 259,557.34, 389,336.37 and 72,568.66

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Solution

The fourth proportional to 259,557.34, 389,336.37 and 72,568.66 is: 108,853.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,557.34 : 389,336.37 = 72,568.66 : x
  2. Step 2: Convert to fraction form
    259,557.34/389,336.37 = 72,568.66/x
  3. Step 3: Cross multiply
    259,557.34x = 389,336.37 × 72,568.66
  4. Step 4: Simplify right side
    259,557.34x = 28,253,618,660.16
  5. Step 5: Solve for x
    x = 28,253,618,660.16/259,557.34
  6. Step 6: Final answer
    x = 108,853.09

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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.