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Finding the Fourth Proportional to 372,850.40, 514,462.72 and 219,936.64

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Solution

The fourth proportional to 372,850.40, 514,462.72 and 219,936.64 is: 303,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,850.40 : 514,462.72 = 219,936.64 : x
  2. Step 2: Convert to fraction form
    372,850.40/514,462.72 = 219,936.64/x
  3. Step 3: Cross multiply
    372,850.40x = 514,462.72 × 219,936.64
  4. Step 4: Simplify right side
    372,850.40x = 113,149,202,042.06
  5. Step 5: Solve for x
    x = 113,149,202,042.06/372,850.40
  6. Step 6: Final answer
    x = 303,470.78

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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.