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Finding the Fourth Proportional to 395,377.88, 545,660.54 and 225,637.52

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Solution

The fourth proportional to 395,377.88, 545,660.54 and 225,637.52 is: 311,402.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,377.88 : 545,660.54 = 225,637.52 : x
  2. Step 2: Convert to fraction form
    395,377.88/545,660.54 = 225,637.52/x
  3. Step 3: Cross multiply
    395,377.88x = 545,660.54 × 225,637.52
  4. Step 4: Simplify right side
    395,377.88x = 123,121,491,007.46
  5. Step 5: Solve for x
    x = 123,121,491,007.46/395,377.88
  6. Step 6: Final answer
    x = 311,402.07

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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.