Home / 405,121.71-559,079.23-223,845.32

Finding the Fourth Proportional to 405,121.71, 559,079.23 and 223,845.32

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Solution

The fourth proportional to 405,121.71, 559,079.23 and 223,845.32 is: 308,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,121.71 : 559,079.23 = 223,845.32 : x
  2. Step 2: Convert to fraction form
    405,121.71/559,079.23 = 223,845.32/x
  3. Step 3: Cross multiply
    405,121.71x = 559,079.23 × 223,845.32
  4. Step 4: Simplify right side
    405,121.71x = 125,147,268,306.62
  5. Step 5: Solve for x
    x = 125,147,268,306.62/405,121.71
  6. Step 6: Final answer
    x = 308,912.77

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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.