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Finding the Fourth Proportional to 380.36, 570.02 and 174.44

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Solution

The fourth proportional to 380.36, 570.02 and 174.44 is: 261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.36 : 570.02 = 174.44 : x
  2. Step 2: Convert to fraction form
    380.36/570.02 = 174.44/x
  3. Step 3: Cross multiply
    380.36x = 570.02 × 174.44
  4. Step 4: Simplify right side
    380.36x = 99,430.57
  5. Step 5: Solve for x
    x = 99,430.57/380.36
  6. Step 6: Final answer
    x = 261.42

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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.