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Finding the Fourth Proportional to 221,993.06, 308,416.82 and 219,335.85

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Solution

The fourth proportional to 221,993.06, 308,416.82 and 219,335.85 is: 304,725.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,993.06 : 308,416.82 = 219,335.85 : x
  2. Step 2: Convert to fraction form
    221,993.06/308,416.82 = 219,335.85/x
  3. Step 3: Cross multiply
    221,993.06x = 308,416.82 × 219,335.85
  4. Step 4: Simplify right side
    221,993.06x = 67,646,864,272.32
  5. Step 5: Solve for x
    x = 67,646,864,272.32/221,993.06
  6. Step 6: Final answer
    x = 304,725.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.