Home / 405,123.92-559,067.73-223,835.30

Finding the Fourth Proportional to 405,123.92, 559,067.73 and 223,835.30

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Solution

The fourth proportional to 405,123.92, 559,067.73 and 223,835.30 is: 308,890.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,123.92 : 559,067.73 = 223,835.30 : x
  2. Step 2: Convert to fraction form
    405,123.92/559,067.73 = 223,835.30/x
  3. Step 3: Cross multiply
    405,123.92x = 559,067.73 × 223,835.30
  4. Step 4: Simplify right side
    405,123.92x = 125,139,093,064.87
  5. Step 5: Solve for x
    x = 125,139,093,064.87/405,123.92
  6. Step 6: Final answer
    x = 308,890.90

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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.