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Finding the Fourth Proportional to 267,565.84, 401,407.92 and 90,067

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Solution

The fourth proportional to 267,565.84, 401,407.92 and 90,067 is: 135,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,565.84 : 401,407.92 = 90,067 : x
  2. Step 2: Convert to fraction form
    267,565.84/401,407.92 = 90,067/x
  3. Step 3: Cross multiply
    267,565.84x = 401,407.92 × 90,067
  4. Step 4: Simplify right side
    267,565.84x = 36,153,607,130.64
  5. Step 5: Solve for x
    x = 36,153,607,130.64/267,565.84
  6. Step 6: Final answer
    x = 135,120.41

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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.