Home / 405,123.42-559,067.04-223,834.80

Finding the Fourth Proportional to 405,123.42, 559,067.04 and 223,834.80

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Solution

The fourth proportional to 405,123.42, 559,067.04 and 223,834.80 is: 308,890.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,123.42 : 559,067.04 = 223,834.80 : x
  2. Step 2: Convert to fraction form
    405,123.42/559,067.04 = 223,834.80/x
  3. Step 3: Cross multiply
    405,123.42x = 559,067.04 × 223,834.80
  4. Step 4: Simplify right side
    405,123.42x = 125,138,659,084.99
  5. Step 5: Solve for x
    x = 125,138,659,084.99/405,123.42
  6. Step 6: Final answer
    x = 308,890.21

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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.