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Finding the Fourth Proportional to 395,092.01, 545,222.81 and 213,799.97

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Solution

The fourth proportional to 395,092.01, 545,222.81 and 213,799.97 is: 295,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,092.01 : 545,222.81 = 213,799.97 : x
  2. Step 2: Convert to fraction form
    395,092.01/545,222.81 = 213,799.97/x
  3. Step 3: Cross multiply
    395,092.01x = 545,222.81 × 213,799.97
  4. Step 4: Simplify right side
    395,092.01x = 116,568,618,229.70
  5. Step 5: Solve for x
    x = 116,568,618,229.70/395,092.01
  6. Step 6: Final answer
    x = 295,041.70

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1.5x scale

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.