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Finding the Fourth Proportional to 866,185.22, 1,299,502.02 and 267,133.16

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Solution

The fourth proportional to 866,185.22, 1,299,502.02 and 267,133.16 is: 400,768.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,185.22 : 1,299,502.02 = 267,133.16 : x
  2. Step 2: Convert to fraction form
    866,185.22/1,299,502.02 = 267,133.16/x
  3. Step 3: Cross multiply
    866,185.22x = 1,299,502.02 × 267,133.16
  4. Step 4: Simplify right side
    866,185.22x = 347,140,081,028.98
  5. Step 5: Solve for x
    x = 347,140,081,028.98/866,185.22
  6. Step 6: Final answer
    x = 400,768.88

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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.