Home / 419,498.12-629,272.05-131,363.66

Finding the Fourth Proportional to 419,498.12, 629,272.05 and 131,363.66

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Solution

The fourth proportional to 419,498.12, 629,272.05 and 131,363.66 is: 197,053.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,498.12 : 629,272.05 = 131,363.66 : x
  2. Step 2: Convert to fraction form
    419,498.12/629,272.05 = 131,363.66/x
  3. Step 3: Cross multiply
    419,498.12x = 629,272.05 × 131,363.66
  4. Step 4: Simplify right side
    419,498.12x = 82,663,476,477.34
  5. Step 5: Solve for x
    x = 82,663,476,477.34/419,498.12
  6. Step 6: Final answer
    x = 197,053.27

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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.