Home / 405,289.26-559,281.78-223,991.82

Finding the Fourth Proportional to 405,289.26, 559,281.78 and 223,991.82

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Solution

The fourth proportional to 405,289.26, 559,281.78 and 223,991.82 is: 309,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,289.26 : 559,281.78 = 223,991.82 : x
  2. Step 2: Convert to fraction form
    405,289.26/559,281.78 = 223,991.82/x
  3. Step 3: Cross multiply
    405,289.26x = 559,281.78 × 223,991.82
  4. Step 4: Simplify right side
    405,289.26x = 125,274,543,795.04
  5. Step 5: Solve for x
    x = 125,274,543,795.04/405,289.26
  6. Step 6: Final answer
    x = 309,099.10

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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.