Home / 405,237.62-559,239.09-223,961.30

Finding the Fourth Proportional to 405,237.62, 559,239.09 and 223,961.30

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Solution

The fourth proportional to 405,237.62, 559,239.09 and 223,961.30 is: 309,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,237.62 : 559,239.09 = 223,961.30 : x
  2. Step 2: Convert to fraction form
    405,237.62/559,239.09 = 223,961.30/x
  3. Step 3: Cross multiply
    405,237.62x = 559,239.09 × 223,961.30
  4. Step 4: Simplify right side
    405,237.62x = 125,247,913,607.22
  5. Step 5: Solve for x
    x = 125,247,913,607.22/405,237.62
  6. Step 6: Final answer
    x = 309,072.77

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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.