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Finding the Fourth Proportional to 253,514.58, 349,850.22 and 138,800.66

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Solution

The fourth proportional to 253,514.58, 349,850.22 and 138,800.66 is: 191,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,514.58 : 349,850.22 = 138,800.66 : x
  2. Step 2: Convert to fraction form
    253,514.58/349,850.22 = 138,800.66/x
  3. Step 3: Cross multiply
    253,514.58x = 349,850.22 × 138,800.66
  4. Step 4: Simplify right side
    253,514.58x = 48,559,441,520.33
  5. Step 5: Solve for x
    x = 48,559,441,520.33/253,514.58
  6. Step 6: Final answer
    x = 191,544.97

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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.