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Finding the Fourth Proportional to 380.04, 524.40 and 222.63

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Solution

The fourth proportional to 380.04, 524.40 and 222.63 is: 307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.04 : 524.40 = 222.63 : x
  2. Step 2: Convert to fraction form
    380.04/524.40 = 222.63/x
  3. Step 3: Cross multiply
    380.04x = 524.40 × 222.63
  4. Step 4: Simplify right side
    380.04x = 116,747.17
  5. Step 5: Solve for x
    x = 116,747.17/380.04
  6. Step 6: Final answer
    x = 307.20

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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.