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Finding the Fourth Proportional to 397,414.93, 548,429.88 and 216,126.37

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Solution

The fourth proportional to 397,414.93, 548,429.88 and 216,126.37 is: 298,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,414.93 : 548,429.88 = 216,126.37 : x
  2. Step 2: Convert to fraction form
    397,414.93/548,429.88 = 216,126.37/x
  3. Step 3: Cross multiply
    397,414.93x = 548,429.88 × 216,126.37
  4. Step 4: Simplify right side
    397,414.93x = 118,530,159,163.94
  5. Step 5: Solve for x
    x = 118,530,159,163.94/397,414.93
  6. Step 6: Final answer
    x = 298,252.91

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1.5x scale

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.