Home / 291,288.98-436,932.59-131,177.45

Finding the Fourth Proportional to 291,288.98, 436,932.59 and 131,177.45

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Solution

The fourth proportional to 291,288.98, 436,932.59 and 131,177.45 is: 196,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,288.98 : 436,932.59 = 131,177.45 : x
  2. Step 2: Convert to fraction form
    291,288.98/436,932.59 = 131,177.45/x
  3. Step 3: Cross multiply
    291,288.98x = 436,932.59 × 131,177.45
  4. Step 4: Simplify right side
    291,288.98x = 57,315,703,414.54
  5. Step 5: Solve for x
    x = 57,315,703,414.54/291,288.98
  6. Step 6: Final answer
    x = 196,765.78

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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.