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Finding the Fourth Proportional to 236,379, 326,230.35 and 131,613.48

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Solution

The fourth proportional to 236,379, 326,230.35 and 131,613.48 is: 181,641.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,379 : 326,230.35 = 131,613.48 : x
  2. Step 2: Convert to fraction form
    236,379/326,230.35 = 131,613.48/x
  3. Step 3: Cross multiply
    236,379x = 326,230.35 × 131,613.48
  4. Step 4: Simplify right side
    236,379x = 42,936,311,645.12
  5. Step 5: Solve for x
    x = 42,936,311,645.12/236,379
  6. Step 6: Final answer
    x = 181,641.82

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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.