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Finding the Fourth Proportional to 267,028.68, 400,608.54 and 80,040

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Solution

The fourth proportional to 267,028.68, 400,608.54 and 80,040 is: 120,079.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,028.68 : 400,608.54 = 80,040 : x
  2. Step 2: Convert to fraction form
    267,028.68/400,608.54 = 80,040/x
  3. Step 3: Cross multiply
    267,028.68x = 400,608.54 × 80,040
  4. Step 4: Simplify right side
    267,028.68x = 32,064,707,541.60
  5. Step 5: Solve for x
    x = 32,064,707,541.60/267,028.68
  6. Step 6: Final answer
    x = 120,079.64

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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.