Home / 221,682.47-332,656.19-81,455.27

Finding the Fourth Proportional to 221,682.47, 332,656.19 and 81,455.27

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Solution

The fourth proportional to 221,682.47, 332,656.19 and 81,455.27 is: 122,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,682.47 : 332,656.19 = 81,455.27 : x
  2. Step 2: Convert to fraction form
    221,682.47/332,656.19 = 81,455.27/x
  3. Step 3: Cross multiply
    221,682.47x = 332,656.19 × 81,455.27
  4. Step 4: Simplify right side
    221,682.47x = 27,096,599,366.35
  5. Step 5: Solve for x
    x = 27,096,599,366.35/221,682.47
  6. Step 6: Final answer
    x = 122,231.58

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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.