Home / 405,122.21-559,079.92-223,845.82

Finding the Fourth Proportional to 405,122.21, 559,079.92 and 223,845.82

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Solution

The fourth proportional to 405,122.21, 559,079.92 and 223,845.82 is: 308,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,122.21 : 559,079.92 = 223,845.82 : x
  2. Step 2: Convert to fraction form
    405,122.21/559,079.92 = 223,845.82/x
  3. Step 3: Cross multiply
    405,122.21x = 559,079.92 × 223,845.82
  4. Step 4: Simplify right side
    405,122.21x = 125,147,702,299.85
  5. Step 5: Solve for x
    x = 125,147,702,299.85/405,122.21
  6. Step 6: Final answer
    x = 308,913.46

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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.