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Finding the Fourth Proportional to 270,155.39, 405,218.43 and 137,032.16

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Solution

The fourth proportional to 270,155.39, 405,218.43 and 137,032.16 is: 205,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,155.39 : 405,218.43 = 137,032.16 : x
  2. Step 2: Convert to fraction form
    270,155.39/405,218.43 = 137,032.16/x
  3. Step 3: Cross multiply
    270,155.39x = 405,218.43 × 137,032.16
  4. Step 4: Simplify right side
    270,155.39x = 55,527,954,708.62
  5. Step 5: Solve for x
    x = 55,527,954,708.62/270,155.39
  6. Step 6: Final answer
    x = 205,540.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.