Home / 260,764.80-391,622.40-228,105.60

Finding the Fourth Proportional to 260,764.80, 391,622.40 and 228,105.60

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Solution

The fourth proportional to 260,764.80, 391,622.40 and 228,105.60 is: 342,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,764.80 : 391,622.40 = 228,105.60 : x
  2. Step 2: Convert to fraction form
    260,764.80/391,622.40 = 228,105.60/x
  3. Step 3: Cross multiply
    260,764.80x = 391,622.40 × 228,105.60
  4. Step 4: Simplify right side
    260,764.80x = 89,331,262,525.44
  5. Step 5: Solve for x
    x = 89,331,262,525.44/260,764.80
  6. Step 6: Final answer
    x = 342,574.08

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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.