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Finding the Fourth Proportional to 321,791.36, 482,692.48 and 111,435.52

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Solution

The fourth proportional to 321,791.36, 482,692.48 and 111,435.52 is: 167,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,791.36 : 482,692.48 = 111,435.52 : x
  2. Step 2: Convert to fraction form
    321,791.36/482,692.48 = 111,435.52/x
  3. Step 3: Cross multiply
    321,791.36x = 482,692.48 × 111,435.52
  4. Step 4: Simplify right side
    321,791.36x = 53,789,087,508.89
  5. Step 5: Solve for x
    x = 53,789,087,508.89/321,791.36
  6. Step 6: Final answer
    x = 167,155.16

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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.