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Finding the Fourth Proportional to 343,989.42, 474,930.22 and 223,474.17

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Solution

The fourth proportional to 343,989.42, 474,930.22 and 223,474.17 is: 308,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,989.42 : 474,930.22 = 223,474.17 : x
  2. Step 2: Convert to fraction form
    343,989.42/474,930.22 = 223,474.17/x
  3. Step 3: Cross multiply
    343,989.42x = 474,930.22 × 223,474.17
  4. Step 4: Simplify right side
    343,989.42x = 106,134,635,605.05
  5. Step 5: Solve for x
    x = 106,134,635,605.05/343,989.42
  6. Step 6: Final answer
    x = 308,540.41

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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.