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Finding the Fourth Proportional to 379,187.60, 568,781.39 and 112,941.19

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Solution

The fourth proportional to 379,187.60, 568,781.39 and 112,941.19 is: 169,411.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,187.60 : 568,781.39 = 112,941.19 : x
  2. Step 2: Convert to fraction form
    379,187.60/568,781.39 = 112,941.19/x
  3. Step 3: Cross multiply
    379,187.60x = 568,781.39 × 112,941.19
  4. Step 4: Simplify right side
    379,187.60x = 64,238,845,896.85
  5. Step 5: Solve for x
    x = 64,238,845,896.85/379,187.60
  6. Step 6: Final answer
    x = 169,411.78

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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.