Home / 284,132.25-426,315.21-208,616.40

Finding the Fourth Proportional to 284,132.25, 426,315.21 and 208,616.40

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Solution

The fourth proportional to 284,132.25, 426,315.21 and 208,616.40 is: 313,010.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,132.25 : 426,315.21 = 208,616.40 : x
  2. Step 2: Convert to fraction form
    284,132.25/426,315.21 = 208,616.40/x
  3. Step 3: Cross multiply
    284,132.25x = 426,315.21 × 208,616.40
  4. Step 4: Simplify right side
    284,132.25x = 88,936,344,375.44
  5. Step 5: Solve for x
    x = 88,936,344,375.44/284,132.25
  6. Step 6: Final answer
    x = 313,010.38

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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.