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Finding the Fourth Proportional to 270,078.21, 372,706.38 and 149,219.51

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Solution

The fourth proportional to 270,078.21, 372,706.38 and 149,219.51 is: 205,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,078.21 : 372,706.38 = 149,219.51 : x
  2. Step 2: Convert to fraction form
    270,078.21/372,706.38 = 149,219.51/x
  3. Step 3: Cross multiply
    270,078.21x = 372,706.38 × 149,219.51
  4. Step 4: Simplify right side
    270,078.21x = 55,615,061,533.94
  5. Step 5: Solve for x
    x = 55,615,061,533.94/270,078.21
  6. Step 6: Final answer
    x = 205,922.06

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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.