Home / 436,942.49-655,449.30-121,399.43

Finding the Fourth Proportional to 436,942.49, 655,449.30 and 121,399.43

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Solution

The fourth proportional to 436,942.49, 655,449.30 and 121,399.43 is: 182,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,942.49 : 655,449.30 = 121,399.43 : x
  2. Step 2: Convert to fraction form
    436,942.49/655,449.30 = 121,399.43/x
  3. Step 3: Cross multiply
    436,942.49x = 655,449.30 × 121,399.43
  4. Step 4: Simplify right side
    436,942.49x = 79,571,168,136.65
  5. Step 5: Solve for x
    x = 79,571,168,136.65/436,942.49
  6. Step 6: Final answer
    x = 182,109.02

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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.