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Finding the Fourth Proportional to 372,912.36, 514,614.40 and 203,142.84

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Solution

The fourth proportional to 372,912.36, 514,614.40 and 203,142.84 is: 280,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,912.36 : 514,614.40 = 203,142.84 : x
  2. Step 2: Convert to fraction form
    372,912.36/514,614.40 = 203,142.84/x
  3. Step 3: Cross multiply
    372,912.36x = 514,614.40 × 203,142.84
  4. Step 4: Simplify right side
    372,912.36x = 104,540,230,720.90
  5. Step 5: Solve for x
    x = 104,540,230,720.90/372,912.36
  6. Step 6: Final answer
    x = 280,334.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.