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Finding the Fourth Proportional to 455,797.28, 628,997.82 and 251,862.24

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Solution

The fourth proportional to 455,797.28, 628,997.82 and 251,862.24 is: 347,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,797.28 : 628,997.82 = 251,862.24 : x
  2. Step 2: Convert to fraction form
    455,797.28/628,997.82 = 251,862.24/x
  3. Step 3: Cross multiply
    455,797.28x = 628,997.82 × 251,862.24
  4. Step 4: Simplify right side
    455,797.28x = 158,420,799,900.32
  5. Step 5: Solve for x
    x = 158,420,799,900.32/455,797.28
  6. Step 6: Final answer
    x = 347,568.55

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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.