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Finding the Fourth Proportional to 455,102.28, 628,029.54 and 251,150.49

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Solution

The fourth proportional to 455,102.28, 628,029.54 and 251,150.49 is: 346,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,102.28 : 628,029.54 = 251,150.49 : x
  2. Step 2: Convert to fraction form
    455,102.28/628,029.54 = 251,150.49/x
  3. Step 3: Cross multiply
    455,102.28x = 628,029.54 × 251,150.49
  4. Step 4: Simplify right side
    455,102.28x = 157,729,926,705.48
  5. Step 5: Solve for x
    x = 157,729,926,705.48/455,102.28
  6. Step 6: Final answer
    x = 346,581.27

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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.