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Finding the Fourth Proportional to 221,504.44, 305,665.50 and 126,002.20

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Solution

The fourth proportional to 221,504.44, 305,665.50 and 126,002.20 is: 173,876.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,504.44 : 305,665.50 = 126,002.20 : x
  2. Step 2: Convert to fraction form
    221,504.44/305,665.50 = 126,002.20/x
  3. Step 3: Cross multiply
    221,504.44x = 305,665.50 × 126,002.20
  4. Step 4: Simplify right side
    221,504.44x = 38,514,525,464.10
  5. Step 5: Solve for x
    x = 38,514,525,464.10/221,504.44
  6. Step 6: Final answer
    x = 173,876.99

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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.