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Finding the Fourth Proportional to 221,843.25, 306,151.25 and 121,247.73

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Solution

The fourth proportional to 221,843.25, 306,151.25 and 121,247.73 is: 167,326.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,843.25 : 306,151.25 = 121,247.73 : x
  2. Step 2: Convert to fraction form
    221,843.25/306,151.25 = 121,247.73/x
  3. Step 3: Cross multiply
    221,843.25x = 306,151.25 × 121,247.73
  4. Step 4: Simplify right side
    221,843.25x = 37,120,143,492.92
  5. Step 5: Solve for x
    x = 37,120,143,492.92/221,843.25
  6. Step 6: Final answer
    x = 167,326.00

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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.