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Finding the Fourth Proportional to 251,773.39, 347,451.70 and 137,055.33

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Solution

The fourth proportional to 251,773.39, 347,451.70 and 137,055.33 is: 189,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,773.39 : 347,451.70 = 137,055.33 : x
  2. Step 2: Convert to fraction form
    251,773.39/347,451.70 = 137,055.33/x
  3. Step 3: Cross multiply
    251,773.39x = 347,451.70 × 137,055.33
  4. Step 4: Simplify right side
    251,773.39x = 47,620,107,402.56
  5. Step 5: Solve for x
    x = 47,620,107,402.56/251,773.39
  6. Step 6: Final answer
    x = 189,138.76

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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.