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Finding the Fourth Proportional to 221,162.87, 305,204.02 and 120,560.87

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Solution

The fourth proportional to 221,162.87, 305,204.02 and 120,560.87 is: 166,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,162.87 : 305,204.02 = 120,560.87 : x
  2. Step 2: Convert to fraction form
    221,162.87/305,204.02 = 120,560.87/x
  3. Step 3: Cross multiply
    221,162.87x = 305,204.02 × 120,560.87
  4. Step 4: Simplify right side
    221,162.87x = 36,795,662,640.31
  5. Step 5: Solve for x
    x = 36,795,662,640.31/221,162.87
  6. Step 6: Final answer
    x = 166,373.60

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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.