Home / 300,402.24-451,186.56-221,203.68

Finding the Fourth Proportional to 300,402.24, 451,186.56 and 221,203.68

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Solution

The fourth proportional to 300,402.24, 451,186.56 and 221,203.68 is: 332,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,402.24 : 451,186.56 = 221,203.68 : x
  2. Step 2: Convert to fraction form
    300,402.24/451,186.56 = 221,203.68/x
  3. Step 3: Cross multiply
    300,402.24x = 451,186.56 × 221,203.68
  4. Step 4: Simplify right side
    300,402.24x = 99,804,127,438.54
  5. Step 5: Solve for x
    x = 99,804,127,438.54/300,402.24
  6. Step 6: Final answer
    x = 332,234.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.