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Finding the Fourth Proportional to 222,931.89, 305,754.42 and 213,776.91

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Solution

The fourth proportional to 222,931.89, 305,754.42 and 213,776.91 is: 293,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,931.89 : 305,754.42 = 213,776.91 : x
  2. Step 2: Convert to fraction form
    222,931.89/305,754.42 = 213,776.91/x
  3. Step 3: Cross multiply
    222,931.89x = 305,754.42 × 213,776.91
  4. Step 4: Simplify right side
    222,931.89x = 65,363,235,126.44
  5. Step 5: Solve for x
    x = 65,363,235,126.44/222,931.89
  6. Step 6: Final answer
    x = 293,198.23

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.