Home / 259,824.24-389,468.52-99,856.80

Finding the Fourth Proportional to 259,824.24, 389,468.52 and 99,856.80

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Solution

The fourth proportional to 259,824.24, 389,468.52 and 99,856.80 is: 149,682.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,824.24 : 389,468.52 = 99,856.80 : x
  2. Step 2: Convert to fraction form
    259,824.24/389,468.52 = 99,856.80/x
  3. Step 3: Cross multiply
    259,824.24x = 389,468.52 × 99,856.80
  4. Step 4: Simplify right side
    259,824.24x = 38,891,080,107.94
  5. Step 5: Solve for x
    x = 38,891,080,107.94/259,824.24
  6. Step 6: Final answer
    x = 149,682.26

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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.