Home / 228,909.60-343,396.80-71,121.60

Finding the Fourth Proportional to 228,909.60, 343,396.80 and 71,121.60

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Solution

The fourth proportional to 228,909.60, 343,396.80 and 71,121.60 is: 106,692.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,909.60 : 343,396.80 = 71,121.60 : x
  2. Step 2: Convert to fraction form
    228,909.60/343,396.80 = 71,121.60/x
  3. Step 3: Cross multiply
    228,909.60x = 343,396.80 × 71,121.60
  4. Step 4: Simplify right side
    228,909.60x = 24,422,929,850.88
  5. Step 5: Solve for x
    x = 24,422,929,850.88/228,909.60
  6. Step 6: Final answer
    x = 106,692.47

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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.