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Finding the Fourth Proportional to 377.62, 521.14 and 222.46

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Solution

The fourth proportional to 377.62, 521.14 and 222.46 is: 307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.62 : 521.14 = 222.46 : x
  2. Step 2: Convert to fraction form
    377.62/521.14 = 222.46/x
  3. Step 3: Cross multiply
    377.62x = 521.14 × 222.46
  4. Step 4: Simplify right side
    377.62x = 115,932.80
  5. Step 5: Solve for x
    x = 115,932.80/377.62
  6. Step 6: Final answer
    x = 307.01

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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.