Home / 436,814.28-655,220.82-137,321.04

Finding the Fourth Proportional to 436,814.28, 655,220.82 and 137,321.04

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Solution

The fourth proportional to 436,814.28, 655,220.82 and 137,321.04 is: 205,981.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,814.28 : 655,220.82 = 137,321.04 : x
  2. Step 2: Convert to fraction form
    436,814.28/655,220.82 = 137,321.04/x
  3. Step 3: Cross multiply
    436,814.28x = 655,220.82 × 137,321.04
  4. Step 4: Simplify right side
    436,814.28x = 89,975,604,432.05
  5. Step 5: Solve for x
    x = 89,975,604,432.05/436,814.28
  6. Step 6: Final answer
    x = 205,981.37

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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.