Home / 221,684.47-332,659.19-81,457.27

Finding the Fourth Proportional to 221,684.47, 332,659.19 and 81,457.27

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Solution

The fourth proportional to 221,684.47, 332,659.19 and 81,457.27 is: 122,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,684.47 : 332,659.19 = 81,457.27 : x
  2. Step 2: Convert to fraction form
    221,684.47/332,659.19 = 81,457.27/x
  3. Step 3: Cross multiply
    221,684.47x = 332,659.19 × 81,457.27
  4. Step 4: Simplify right side
    221,684.47x = 27,097,509,457.81
  5. Step 5: Solve for x
    x = 27,097,509,457.81/221,684.47
  6. Step 6: Final answer
    x = 122,234.59

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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.