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Finding the Fourth Proportional to 365.70, 547.20 and 244.20

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Solution

The fourth proportional to 365.70, 547.20 and 244.20 is: 365.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.70 : 547.20 = 244.20 : x
  2. Step 2: Convert to fraction form
    365.70/547.20 = 244.20/x
  3. Step 3: Cross multiply
    365.70x = 547.20 × 244.20
  4. Step 4: Simplify right side
    365.70x = 133,626.24
  5. Step 5: Solve for x
    x = 133,626.24/365.70
  6. Step 6: Final answer
    x = 365.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.