Home / 397,443.78-548,467.07-216,151.81

Finding the Fourth Proportional to 397,443.78, 548,467.07 and 216,151.81

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Solution

The fourth proportional to 397,443.78, 548,467.07 and 216,151.81 is: 298,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,443.78 : 548,467.07 = 216,151.81 : x
  2. Step 2: Convert to fraction form
    397,443.78/548,467.07 = 216,151.81/x
  3. Step 3: Cross multiply
    397,443.78x = 548,467.07 × 216,151.81
  4. Step 4: Simplify right side
    397,443.78x = 118,552,147,453.97
  5. Step 5: Solve for x
    x = 118,552,147,453.97/397,443.78
  6. Step 6: Final answer
    x = 298,286.58

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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.