Home / 407,120.92-561,835.88-225,826.95

Finding the Fourth Proportional to 407,120.92, 561,835.88 and 225,826.95

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Solution

The fourth proportional to 407,120.92, 561,835.88 and 225,826.95 is: 311,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,120.92 : 561,835.88 = 225,826.95 : x
  2. Step 2: Convert to fraction form
    407,120.92/561,835.88 = 225,826.95/x
  3. Step 3: Cross multiply
    407,120.92x = 561,835.88 × 225,826.95
  4. Step 4: Simplify right side
    407,120.92x = 126,877,683,180.97
  5. Step 5: Solve for x
    x = 126,877,683,180.97/407,120.92
  6. Step 6: Final answer
    x = 311,646.19

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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.