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Finding the Fourth Proportional to 270,774.90, 373,660.20 and 149,921.28

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Solution

The fourth proportional to 270,774.90, 373,660.20 and 149,921.28 is: 206,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,774.90 : 373,660.20 = 149,921.28 : x
  2. Step 2: Convert to fraction form
    270,774.90/373,660.20 = 149,921.28/x
  3. Step 3: Cross multiply
    270,774.90x = 373,660.20 × 149,921.28
  4. Step 4: Simplify right side
    270,774.90x = 56,019,615,469.06
  5. Step 5: Solve for x
    x = 56,019,615,469.06/270,774.90
  6. Step 6: Final answer
    x = 206,886.29

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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.