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Finding the Fourth Proportional to 221,770.82, 306,043.55 and 119,796.25

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Solution

The fourth proportional to 221,770.82, 306,043.55 and 119,796.25 is: 165,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,770.82 : 306,043.55 = 119,796.25 : x
  2. Step 2: Convert to fraction form
    221,770.82/306,043.55 = 119,796.25/x
  3. Step 3: Cross multiply
    221,770.82x = 306,043.55 × 119,796.25
  4. Step 4: Simplify right side
    221,770.82x = 36,662,869,285.67
  5. Step 5: Solve for x
    x = 36,662,869,285.67/221,770.82
  6. Step 6: Final answer
    x = 165,318.72

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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.