Home / 375,811.08-518,640.54-222,939.78

Finding the Fourth Proportional to 375,811.08, 518,640.54 and 222,939.78

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Solution

The fourth proportional to 375,811.08, 518,640.54 and 222,939.78 is: 307,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,811.08 : 518,640.54 = 222,939.78 : x
  2. Step 2: Convert to fraction form
    375,811.08/518,640.54 = 222,939.78/x
  3. Step 3: Cross multiply
    375,811.08x = 518,640.54 × 222,939.78
  4. Step 4: Simplify right side
    375,811.08x = 115,625,607,886.68
  5. Step 5: Solve for x
    x = 115,625,607,886.68/375,811.08
  6. Step 6: Final answer
    x = 307,669.50

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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.