Home / 291,245.28-436,868.08-80,883.24

Finding the Fourth Proportional to 291,245.28, 436,868.08 and 80,883.24

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Solution

The fourth proportional to 291,245.28, 436,868.08 and 80,883.24 is: 121,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,245.28 : 436,868.08 = 80,883.24 : x
  2. Step 2: Convert to fraction form
    291,245.28/436,868.08 = 80,883.24/x
  3. Step 3: Cross multiply
    291,245.28x = 436,868.08 × 80,883.24
  4. Step 4: Simplify right side
    291,245.28x = 35,335,305,762.98
  5. Step 5: Solve for x
    x = 35,335,305,762.98/291,245.28
  6. Step 6: Final answer
    x = 121,324.90

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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.