Home / 455,634.05-628,771.03-251,699.20

Finding the Fourth Proportional to 455,634.05, 628,771.03 and 251,699.20

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Solution

The fourth proportional to 455,634.05, 628,771.03 and 251,699.20 is: 347,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,634.05 : 628,771.03 = 251,699.20 : x
  2. Step 2: Convert to fraction form
    455,634.05/628,771.03 = 251,699.20/x
  3. Step 3: Cross multiply
    455,634.05x = 628,771.03 × 251,699.20
  4. Step 4: Simplify right side
    455,634.05x = 158,261,163,033.00
  5. Step 5: Solve for x
    x = 158,261,163,033.00/455,634.05
  6. Step 6: Final answer
    x = 347,342.71

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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.