Home / 268,830.60-403,073.10-111,121.80

Finding the Fourth Proportional to 268,830.60, 403,073.10 and 111,121.80

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Solution

The fourth proportional to 268,830.60, 403,073.10 and 111,121.80 is: 166,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,830.60 : 403,073.10 = 111,121.80 : x
  2. Step 2: Convert to fraction form
    268,830.60/403,073.10 = 111,121.80/x
  3. Step 3: Cross multiply
    268,830.60x = 403,073.10 × 111,121.80
  4. Step 4: Simplify right side
    268,830.60x = 44,790,208,403.58
  5. Step 5: Solve for x
    x = 44,790,208,403.58/268,830.60
  6. Step 6: Final answer
    x = 166,611.27

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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.