Home / 399,229.20-550,913.76-227,124

Finding the Fourth Proportional to 399,229.20, 550,913.76 and 227,124

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Solution

The fourth proportional to 399,229.20, 550,913.76 and 227,124 is: 313,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,229.20 : 550,913.76 = 227,124 : x
  2. Step 2: Convert to fraction form
    399,229.20/550,913.76 = 227,124/x
  3. Step 3: Cross multiply
    399,229.20x = 550,913.76 × 227,124
  4. Step 4: Simplify right side
    399,229.20x = 125,125,736,826.24
  5. Step 5: Solve for x
    x = 125,125,736,826.24/399,229.20
  6. Step 6: Final answer
    x = 313,418.30

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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.