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Finding the Fourth Proportional to 380.76, 525.42 and 233.37

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Solution

The fourth proportional to 380.76, 525.42 and 233.37 is: 322.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.76 : 525.42 = 233.37 : x
  2. Step 2: Convert to fraction form
    380.76/525.42 = 233.37/x
  3. Step 3: Cross multiply
    380.76x = 525.42 × 233.37
  4. Step 4: Simplify right side
    380.76x = 122,617.27
  5. Step 5: Solve for x
    x = 122,617.27/380.76
  6. Step 6: Final answer
    x = 322.03

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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.