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Finding the Fourth Proportional to 223,123.88, 307,879.97 and 131,247.33

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Solution

The fourth proportional to 223,123.88, 307,879.97 and 131,247.33 is: 181,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,123.88 : 307,879.97 = 131,247.33 : x
  2. Step 2: Convert to fraction form
    223,123.88/307,879.97 = 131,247.33/x
  3. Step 3: Cross multiply
    223,123.88x = 307,879.97 × 131,247.33
  4. Step 4: Simplify right side
    223,123.88x = 40,408,423,366.74
  5. Step 5: Solve for x
    x = 40,408,423,366.74/223,123.88
  6. Step 6: Final answer
    x = 181,103.09

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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.