Home / 405,112.82-559,008.03-223,813.94

Finding the Fourth Proportional to 405,112.82, 559,008.03 and 223,813.94

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Solution

The fourth proportional to 405,112.82, 559,008.03 and 223,813.94 is: 308,836.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,112.82 : 559,008.03 = 223,813.94 : x
  2. Step 2: Convert to fraction form
    405,112.82/559,008.03 = 223,813.94/x
  3. Step 3: Cross multiply
    405,112.82x = 559,008.03 × 223,813.94
  4. Step 4: Simplify right side
    405,112.82x = 125,113,789,685.94
  5. Step 5: Solve for x
    x = 125,113,789,685.94/405,112.82
  6. Step 6: Final answer
    x = 308,836.91

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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.