Home / 354,917.60-531,890.40-228,168.80

Finding the Fourth Proportional to 354,917.60, 531,890.40 and 228,168.80

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Solution

The fourth proportional to 354,917.60, 531,890.40 and 228,168.80 is: 341,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,917.60 : 531,890.40 = 228,168.80 : x
  2. Step 2: Convert to fraction form
    354,917.60/531,890.40 = 228,168.80/x
  3. Step 3: Cross multiply
    354,917.60x = 531,890.40 × 228,168.80
  4. Step 4: Simplify right side
    354,917.60x = 121,360,794,299.52
  5. Step 5: Solve for x
    x = 121,360,794,299.52/354,917.60
  6. Step 6: Final answer
    x = 341,940.76

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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.