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Finding the Fourth Proportional to 147,467.78, 221,201.61 and 36,659.78

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Solution

The fourth proportional to 147,467.78, 221,201.61 and 36,659.78 is: 54,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,467.78 : 221,201.61 = 36,659.78 : x
  2. Step 2: Convert to fraction form
    147,467.78/221,201.61 = 36,659.78/x
  3. Step 3: Cross multiply
    147,467.78x = 221,201.61 × 36,659.78
  4. Step 4: Simplify right side
    147,467.78x = 8,109,202,358.25
  5. Step 5: Solve for x
    x = 8,109,202,358.25/147,467.78
  6. Step 6: Final answer
    x = 54,989.66

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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.