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Finding the Fourth Proportional to 395,227.88, 545,363.22 and 225,451.88

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Solution

The fourth proportional to 395,227.88, 545,363.22 and 225,451.88 is: 311,094.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,227.88 : 545,363.22 = 225,451.88 : x
  2. Step 2: Convert to fraction form
    395,227.88/545,363.22 = 225,451.88/x
  3. Step 3: Cross multiply
    395,227.88x = 545,363.22 × 225,451.88
  4. Step 4: Simplify right side
    395,227.88x = 122,953,163,231.85
  5. Step 5: Solve for x
    x = 122,953,163,231.85/395,227.88
  6. Step 6: Final answer
    x = 311,094.36

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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.