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Finding the Fourth Proportional to 285.02, 427.23 and 176.88

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Solution

The fourth proportional to 285.02, 427.23 and 176.88 is: 265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.02 : 427.23 = 176.88 : x
  2. Step 2: Convert to fraction form
    285.02/427.23 = 176.88/x
  3. Step 3: Cross multiply
    285.02x = 427.23 × 176.88
  4. Step 4: Simplify right side
    285.02x = 75,568.44
  5. Step 5: Solve for x
    x = 75,568.44/285.02
  6. Step 6: Final answer
    x = 265.14

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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.