Home / 291,144.12-436,711.28-131,131.04

Finding the Fourth Proportional to 291,144.12, 436,711.28 and 131,131.04

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Solution

The fourth proportional to 291,144.12, 436,711.28 and 131,131.04 is: 196,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,144.12 : 436,711.28 = 131,131.04 : x
  2. Step 2: Convert to fraction form
    291,144.12/436,711.28 = 131,131.04/x
  3. Step 3: Cross multiply
    291,144.12x = 436,711.28 × 131,131.04
  4. Step 4: Simplify right side
    291,144.12x = 57,266,404,326.13
  5. Step 5: Solve for x
    x = 57,266,404,326.13/291,144.12
  6. Step 6: Final answer
    x = 196,694.35

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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.