Home / 322,970.21-445,236.93-227,179.61

Finding the Fourth Proportional to 322,970.21, 445,236.93 and 227,179.61

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Solution

The fourth proportional to 322,970.21, 445,236.93 and 227,179.61 is: 313,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,970.21 : 445,236.93 = 227,179.61 : x
  2. Step 2: Convert to fraction form
    322,970.21/445,236.93 = 227,179.61/x
  3. Step 3: Cross multiply
    322,970.21x = 445,236.93 × 227,179.61
  4. Step 4: Simplify right side
    322,970.21x = 101,148,749,888.81
  5. Step 5: Solve for x
    x = 101,148,749,888.81/322,970.21
  6. Step 6: Final answer
    x = 313,182.91

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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.