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Finding the Fourth Proportional to 216,692.83, 325,099.05 and 90,392.44

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Solution

The fourth proportional to 216,692.83, 325,099.05 and 90,392.44 is: 135,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,692.83 : 325,099.05 = 90,392.44 : x
  2. Step 2: Convert to fraction form
    216,692.83/325,099.05 = 90,392.44/x
  3. Step 3: Cross multiply
    216,692.83x = 325,099.05 × 90,392.44
  4. Step 4: Simplify right side
    216,692.83x = 29,386,496,371.18
  5. Step 5: Solve for x
    x = 29,386,496,371.18/216,692.83
  6. Step 6: Final answer
    x = 135,613.61

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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.