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Finding the Fourth Proportional to 147,469.78, 221,204.60 and 36,661.78

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Solution

The fourth proportional to 147,469.78, 221,204.60 and 36,661.78 is: 54,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,469.78 : 221,204.60 = 36,661.78 : x
  2. Step 2: Convert to fraction form
    147,469.78/221,204.60 = 36,661.78/x
  3. Step 3: Cross multiply
    147,469.78x = 221,204.60 × 36,661.78
  4. Step 4: Simplify right side
    147,469.78x = 8,109,754,380.19
  5. Step 5: Solve for x
    x = 8,109,754,380.19/147,469.78
  6. Step 6: Final answer
    x = 54,992.65

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1.5x scale

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.