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Finding the Fourth Proportional to 388, 581.52 and 233.84

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Solution

The fourth proportional to 388, 581.52 and 233.84 is: 350.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    388 : 581.52 = 233.84 : x
  2. Step 2: Convert to fraction form
    388/581.52 = 233.84/x
  3. Step 3: Cross multiply
    388x = 581.52 × 233.84
  4. Step 4: Simplify right side
    388x = 135,982.64
  5. Step 5: Solve for x
    x = 135,982.64/388
  6. Step 6: Final answer
    x = 350.47

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