Home / 268,908.12-403,428.60-111,181.68

Finding the Fourth Proportional to 268,908.12, 403,428.60 and 111,181.68

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Solution

The fourth proportional to 268,908.12, 403,428.60 and 111,181.68 is: 166,799.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,908.12 : 403,428.60 = 111,181.68 : x
  2. Step 2: Convert to fraction form
    268,908.12/403,428.60 = 111,181.68/x
  3. Step 3: Cross multiply
    268,908.12x = 403,428.60 × 111,181.68
  4. Step 4: Simplify right side
    268,908.12x = 44,853,869,508.05
  5. Step 5: Solve for x
    x = 44,853,869,508.05/268,908.12
  6. Step 6: Final answer
    x = 166,799.98

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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.