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Finding the Fourth Proportional to 455,069.88, 627,991.38 and 251,122.41

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Solution

The fourth proportional to 455,069.88, 627,991.38 and 251,122.41 is: 346,546.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,069.88 : 627,991.38 = 251,122.41 : x
  2. Step 2: Convert to fraction form
    455,069.88/627,991.38 = 251,122.41/x
  3. Step 3: Cross multiply
    455,069.88x = 627,991.38 × 251,122.41
  4. Step 4: Simplify right side
    455,069.88x = 157,702,708,804.83
  5. Step 5: Solve for x
    x = 157,702,708,804.83/455,069.88
  6. Step 6: Final answer
    x = 346,546.14

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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.