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Finding the Fourth Proportional to 455,131.88, 682,637.88 and 135,276.92

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Solution

The fourth proportional to 455,131.88, 682,637.88 and 135,276.92 is: 202,897.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,131.88 : 682,637.88 = 135,276.92 : x
  2. Step 2: Convert to fraction form
    455,131.88/682,637.88 = 135,276.92/x
  3. Step 3: Cross multiply
    455,131.88x = 682,637.88 × 135,276.92
  4. Step 4: Simplify right side
    455,131.88x = 92,345,149,881.73
  5. Step 5: Solve for x
    x = 92,345,149,881.73/455,131.88
  6. Step 6: Final answer
    x = 202,897.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.