Home / 256,112.20-383,390.70-228,118.60

Finding the Fourth Proportional to 256,112.20, 383,390.70 and 228,118.60

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Solution

The fourth proportional to 256,112.20, 383,390.70 and 228,118.60 is: 341,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,112.20 : 383,390.70 = 228,118.60 : x
  2. Step 2: Convert to fraction form
    256,112.20/383,390.70 = 228,118.60/x
  3. Step 3: Cross multiply
    256,112.20x = 383,390.70 × 228,118.60
  4. Step 4: Simplify right side
    256,112.20x = 87,458,549,737.02
  5. Step 5: Solve for x
    x = 87,458,549,737.02/256,112.20
  6. Step 6: Final answer
    x = 341,485.29

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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.