Home / 455,943.05-629,181.83-251,983.43

Finding the Fourth Proportional to 455,943.05, 629,181.83 and 251,983.43

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Solution

The fourth proportional to 455,943.05, 629,181.83 and 251,983.43 is: 347,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,943.05 : 629,181.83 = 251,983.43 : x
  2. Step 2: Convert to fraction form
    455,943.05/629,181.83 = 251,983.43/x
  3. Step 3: Cross multiply
    455,943.05x = 629,181.83 × 251,983.43
  4. Step 4: Simplify right side
    455,943.05x = 158,543,391,211.25
  5. Step 5: Solve for x
    x = 158,543,391,211.25/455,943.05
  6. Step 6: Final answer
    x = 347,726.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.