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Finding the Fourth Proportional to 455,067.54, 627,992.73 and 251,118.41

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Solution

The fourth proportional to 455,067.54, 627,992.73 and 251,118.41 is: 346,543.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,067.54 : 627,992.73 = 251,118.41 : x
  2. Step 2: Convert to fraction form
    455,067.54/627,992.73 = 251,118.41/x
  3. Step 3: Cross multiply
    455,067.54x = 627,992.73 × 251,118.41
  4. Step 4: Simplify right side
    455,067.54x = 157,700,532,709.20
  5. Step 5: Solve for x
    x = 157,700,532,709.20/455,067.54
  6. Step 6: Final answer
    x = 346,543.14

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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.