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Finding the Fourth Proportional to 240,613.88, 331,970.82 and 139,992.44

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Solution

The fourth proportional to 240,613.88, 331,970.82 and 139,992.44 is: 193,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,613.88 : 331,970.82 = 139,992.44 : x
  2. Step 2: Convert to fraction form
    240,613.88/331,970.82 = 139,992.44/x
  3. Step 3: Cross multiply
    240,613.88x = 331,970.82 × 139,992.44
  4. Step 4: Simplify right side
    240,613.88x = 46,473,405,100.60
  5. Step 5: Solve for x
    x = 46,473,405,100.60/240,613.88
  6. Step 6: Final answer
    x = 193,145.15

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1.5x scale

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.