Home / 392,389.92-541,481.76-222,633.36

Finding the Fourth Proportional to 392,389.92, 541,481.76 and 222,633.36

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Solution

The fourth proportional to 392,389.92, 541,481.76 and 222,633.36 is: 307,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,389.92 : 541,481.76 = 222,633.36 : x
  2. Step 2: Convert to fraction form
    392,389.92/541,481.76 = 222,633.36/x
  3. Step 3: Cross multiply
    392,389.92x = 541,481.76 × 222,633.36
  4. Step 4: Simplify right side
    392,389.92x = 120,551,903,607.51
  5. Step 5: Solve for x
    x = 120,551,903,607.51/392,389.92
  6. Step 6: Final answer
    x = 307,224.77

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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.