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Finding the Fourth Proportional to 381.58, 572.08 and 176.04

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Solution

The fourth proportional to 381.58, 572.08 and 176.04 is: 263.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.58 : 572.08 = 176.04 : x
  2. Step 2: Convert to fraction form
    381.58/572.08 = 176.04/x
  3. Step 3: Cross multiply
    381.58x = 572.08 × 176.04
  4. Step 4: Simplify right side
    381.58x = 100,708.96
  5. Step 5: Solve for x
    x = 100,708.96/381.58
  6. Step 6: Final answer
    x = 263.93

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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.