Home / 303,991.24-456,009.78-90,742.31

Finding the Fourth Proportional to 303,991.24, 456,009.78 and 90,742.31

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Solution

The fourth proportional to 303,991.24, 456,009.78 and 90,742.31 is: 136,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,991.24 : 456,009.78 = 90,742.31 : x
  2. Step 2: Convert to fraction form
    303,991.24/456,009.78 = 90,742.31/x
  3. Step 3: Cross multiply
    303,991.24x = 456,009.78 × 90,742.31
  4. Step 4: Simplify right side
    303,991.24x = 41,379,380,819.79
  5. Step 5: Solve for x
    x = 41,379,380,819.79/303,991.24
  6. Step 6: Final answer
    x = 136,120.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.