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Finding the Fourth Proportional to 286,809.06, 395,796.84 and 159,481.92

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Solution

The fourth proportional to 286,809.06, 395,796.84 and 159,481.92 is: 220,085.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,809.06 : 395,796.84 = 159,481.92 : x
  2. Step 2: Convert to fraction form
    286,809.06/395,796.84 = 159,481.92/x
  3. Step 3: Cross multiply
    286,809.06x = 395,796.84 × 159,481.92
  4. Step 4: Simplify right side
    286,809.06x = 63,122,439,973.13
  5. Step 5: Solve for x
    x = 63,122,439,973.13/286,809.06
  6. Step 6: Final answer
    x = 220,085.24

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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.