Home / 268,865.20-403,346.40-111,109.60

Finding the Fourth Proportional to 268,865.20, 403,346.40 and 111,109.60

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Solution

The fourth proportional to 268,865.20, 403,346.40 and 111,109.60 is: 166,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,865.20 : 403,346.40 = 111,109.60 : x
  2. Step 2: Convert to fraction form
    268,865.20/403,346.40 = 111,109.60/x
  3. Step 3: Cross multiply
    268,865.20x = 403,346.40 × 111,109.60
  4. Step 4: Simplify right side
    268,865.20x = 44,815,657,165.44
  5. Step 5: Solve for x
    x = 44,815,657,165.44/268,865.20
  6. Step 6: Final answer
    x = 166,684.48

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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.