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Finding the Fourth Proportional to 222,391.98, 306,776.43 and 131,659.42

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Solution

The fourth proportional to 222,391.98, 306,776.43 and 131,659.42 is: 181,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,391.98 : 306,776.43 = 131,659.42 : x
  2. Step 2: Convert to fraction form
    222,391.98/306,776.43 = 131,659.42/x
  3. Step 3: Cross multiply
    222,391.98x = 306,776.43 × 131,659.42
  4. Step 4: Simplify right side
    222,391.98x = 40,390,006,843.47
  5. Step 5: Solve for x
    x = 40,390,006,843.47/222,391.98
  6. Step 6: Final answer
    x = 181,616.29

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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.