Home / 411,917.70-617,876.55-131,463.30

Finding the Fourth Proportional to 411,917.70, 617,876.55 and 131,463.30

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Solution

The fourth proportional to 411,917.70, 617,876.55 and 131,463.30 is: 197,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,917.70 : 617,876.55 = 131,463.30 : x
  2. Step 2: Convert to fraction form
    411,917.70/617,876.55 = 131,463.30/x
  3. Step 3: Cross multiply
    411,917.70x = 617,876.55 × 131,463.30
  4. Step 4: Simplify right side
    411,917.70x = 81,228,090,255.62
  5. Step 5: Solve for x
    x = 81,228,090,255.62/411,917.70
  6. Step 6: Final answer
    x = 197,194.95

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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.