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Finding the Fourth Proportional to 270,078.39, 372,712.08 and 149,222.46

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Solution

The fourth proportional to 270,078.39, 372,712.08 and 149,222.46 is: 205,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,078.39 : 372,712.08 = 149,222.46 : x
  2. Step 2: Convert to fraction form
    270,078.39/372,712.08 = 149,222.46/x
  3. Step 3: Cross multiply
    270,078.39x = 372,712.08 × 149,222.46
  4. Step 4: Simplify right side
    270,078.39x = 55,617,013,449.32
  5. Step 5: Solve for x
    x = 55,617,013,449.32/270,078.39
  6. Step 6: Final answer
    x = 205,929.15

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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.