Home / 259,447.60-389,139.18-69,922.79

Finding the Fourth Proportional to 259,447.60, 389,139.18 and 69,922.79

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Solution

The fourth proportional to 259,447.60, 389,139.18 and 69,922.79 is: 104,875.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,447.60 : 389,139.18 = 69,922.79 : x
  2. Step 2: Convert to fraction form
    259,447.60/389,139.18 = 69,922.79/x
  3. Step 3: Cross multiply
    259,447.60x = 389,139.18 × 69,922.79
  4. Step 4: Simplify right side
    259,447.60x = 27,209,697,163.91
  5. Step 5: Solve for x
    x = 27,209,697,163.91/259,447.60
  6. Step 6: Final answer
    x = 104,875.50

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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.