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Finding the Fourth Proportional to 383.10, 574.62 and 177.62

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Solution

The fourth proportional to 383.10, 574.62 and 177.62 is: 266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.10 : 574.62 = 177.62 : x
  2. Step 2: Convert to fraction form
    383.10/574.62 = 177.62/x
  3. Step 3: Cross multiply
    383.10x = 574.62 × 177.62
  4. Step 4: Simplify right side
    383.10x = 102,061.13
  5. Step 5: Solve for x
    x = 102,061.13/383.10
  6. Step 6: Final answer
    x = 266.41

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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.