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Finding the Fourth Proportional to 270,084.72, 372,720.82 and 149,228.78

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Solution

The fourth proportional to 270,084.72, 372,720.82 and 149,228.78 is: 205,937.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,084.72 : 372,720.82 = 149,228.78 : x
  2. Step 2: Convert to fraction form
    270,084.72/372,720.82 = 149,228.78/x
  3. Step 3: Cross multiply
    270,084.72x = 372,720.82 × 149,228.78
  4. Step 4: Simplify right side
    270,084.72x = 55,620,673,249.20
  5. Step 5: Solve for x
    x = 55,620,673,249.20/270,084.72
  6. Step 6: Final answer
    x = 205,937.87

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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.