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Finding the Fourth Proportional to 267,741.78, 401,357.52 and 90,157.38

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Solution

The fourth proportional to 267,741.78, 401,357.52 and 90,157.38 is: 135,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,741.78 : 401,357.52 = 90,157.38 : x
  2. Step 2: Convert to fraction form
    267,741.78/401,357.52 = 90,157.38/x
  3. Step 3: Cross multiply
    267,741.78x = 401,357.52 × 90,157.38
  4. Step 4: Simplify right side
    267,741.78x = 36,185,342,446.50
  5. Step 5: Solve for x
    x = 36,185,342,446.50/267,741.78
  6. Step 6: Final answer
    x = 135,150.15

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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.