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Finding the Fourth Proportional to 221,292.82, 305,382.70 and 125,799.54

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Solution

The fourth proportional to 221,292.82, 305,382.70 and 125,799.54 is: 173,602.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,292.82 : 305,382.70 = 125,799.54 : x
  2. Step 2: Convert to fraction form
    221,292.82/305,382.70 = 125,799.54/x
  3. Step 3: Cross multiply
    221,292.82x = 305,382.70 × 125,799.54
  4. Step 4: Simplify right side
    221,292.82x = 38,417,003,183.96
  5. Step 5: Solve for x
    x = 38,417,003,183.96/221,292.82
  6. Step 6: Final answer
    x = 173,602.57

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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.