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Finding the Fourth Proportional to 221,005.54, 305,024.22 and 130,383.68

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Solution

The fourth proportional to 221,005.54, 305,024.22 and 130,383.68 is: 179,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,005.54 : 305,024.22 = 130,383.68 : x
  2. Step 2: Convert to fraction form
    221,005.54/305,024.22 = 130,383.68/x
  3. Step 3: Cross multiply
    221,005.54x = 305,024.22 × 130,383.68
  4. Step 4: Simplify right side
    221,005.54x = 39,770,180,292.73
  5. Step 5: Solve for x
    x = 39,770,180,292.73/221,005.54
  6. Step 6: Final answer
    x = 179,951.06

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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.