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Finding the Fourth Proportional to 380.49, 524.91 and 233.07

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Solution

The fourth proportional to 380.49, 524.91 and 233.07 is: 321.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.49 : 524.91 = 233.07 : x
  2. Step 2: Convert to fraction form
    380.49/524.91 = 233.07/x
  3. Step 3: Cross multiply
    380.49x = 524.91 × 233.07
  4. Step 4: Simplify right side
    380.49x = 122,340.77
  5. Step 5: Solve for x
    x = 122,340.77/380.49
  6. Step 6: Final answer
    x = 321.53

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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.