Home / 303,992.24-456,011.28-90,743.31

Finding the Fourth Proportional to 303,992.24, 456,011.28 and 90,743.31

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Solution

The fourth proportional to 303,992.24, 456,011.28 and 90,743.31 is: 136,121.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,992.24 : 456,011.28 = 90,743.31 : x
  2. Step 2: Convert to fraction form
    303,992.24/456,011.28 = 90,743.31/x
  3. Step 3: Cross multiply
    303,992.24x = 456,011.28 × 90,743.31
  4. Step 4: Simplify right side
    303,992.24x = 41,379,972,944.54
  5. Step 5: Solve for x
    x = 41,379,972,944.54/303,992.24
  6. Step 6: Final answer
    x = 136,121.81

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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.