Home / 290,843.06-436,274.30-80,463.38

Finding the Fourth Proportional to 290,843.06, 436,274.30 and 80,463.38

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Solution

The fourth proportional to 290,843.06, 436,274.30 and 80,463.38 is: 120,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,843.06 : 436,274.30 = 80,463.38 : x
  2. Step 2: Convert to fraction form
    290,843.06/436,274.30 = 80,463.38/x
  3. Step 3: Cross multiply
    290,843.06x = 436,274.30 × 80,463.38
  4. Step 4: Simplify right side
    290,843.06x = 35,104,104,785.13
  5. Step 5: Solve for x
    x = 35,104,104,785.13/290,843.06
  6. Step 6: Final answer
    x = 120,697.76

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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.