Home / 355,318.06-490,388.94-226,215.30

Finding the Fourth Proportional to 355,318.06, 490,388.94 and 226,215.30

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Solution

The fourth proportional to 355,318.06, 490,388.94 and 226,215.30 is: 312,208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,318.06 : 490,388.94 = 226,215.30 : x
  2. Step 2: Convert to fraction form
    355,318.06/490,388.94 = 226,215.30/x
  3. Step 3: Cross multiply
    355,318.06x = 490,388.94 × 226,215.30
  4. Step 4: Simplify right side
    355,318.06x = 110,933,481,178.78
  5. Step 5: Solve for x
    x = 110,933,481,178.78/355,318.06
  6. Step 6: Final answer
    x = 312,208.96

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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.