Home / 228,917.20-343,343.40-71,161.60

Finding the Fourth Proportional to 228,917.20, 343,343.40 and 71,161.60

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Solution

The fourth proportional to 228,917.20, 343,343.40 and 71,161.60 is: 106,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,917.20 : 343,343.40 = 71,161.60 : x
  2. Step 2: Convert to fraction form
    228,917.20/343,343.40 = 71,161.60/x
  3. Step 3: Cross multiply
    228,917.20x = 343,343.40 × 71,161.60
  4. Step 4: Simplify right side
    228,917.20x = 24,432,865,693.44
  5. Step 5: Solve for x
    x = 24,432,865,693.44/228,917.20
  6. Step 6: Final answer
    x = 106,732.33

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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.