Home / 398,600.25-550,090.23-228,845.31

Finding the Fourth Proportional to 398,600.25, 550,090.23 and 228,845.31

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Solution

The fourth proportional to 398,600.25, 550,090.23 and 228,845.31 is: 315,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,600.25 : 550,090.23 = 228,845.31 : x
  2. Step 2: Convert to fraction form
    398,600.25/550,090.23 = 228,845.31/x
  3. Step 3: Cross multiply
    398,600.25x = 550,090.23 × 228,845.31
  4. Step 4: Simplify right side
    398,600.25x = 125,885,569,212.32
  5. Step 5: Solve for x
    x = 125,885,569,212.32/398,600.25
  6. Step 6: Final answer
    x = 315,819.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.