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Finding the Fourth Proportional to 337,187.80, 505,781.70 and 87,869.80

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Solution

The fourth proportional to 337,187.80, 505,781.70 and 87,869.80 is: 131,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,187.80 : 505,781.70 = 87,869.80 : x
  2. Step 2: Convert to fraction form
    337,187.80/505,781.70 = 87,869.80/x
  3. Step 3: Cross multiply
    337,187.80x = 505,781.70 × 87,869.80
  4. Step 4: Simplify right side
    337,187.80x = 44,442,936,822.66
  5. Step 5: Solve for x
    x = 44,442,936,822.66/337,187.80
  6. Step 6: Final answer
    x = 131,804.70

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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.