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Finding the Fourth Proportional to 384.23, 576.18 and 153.08

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Solution

The fourth proportional to 384.23, 576.18 and 153.08 is: 229.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.23 : 576.18 = 153.08 : x
  2. Step 2: Convert to fraction form
    384.23/576.18 = 153.08/x
  3. Step 3: Cross multiply
    384.23x = 576.18 × 153.08
  4. Step 4: Simplify right side
    384.23x = 88,201.63
  5. Step 5: Solve for x
    x = 88,201.63/384.23
  6. Step 6: Final answer
    x = 229.55

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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.