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Finding the Fourth Proportional to 376.80, 565.35 and 181.68

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Solution

The fourth proportional to 376.80, 565.35 and 181.68 is: 272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.80 : 565.35 = 181.68 : x
  2. Step 2: Convert to fraction form
    376.80/565.35 = 181.68/x
  3. Step 3: Cross multiply
    376.80x = 565.35 × 181.68
  4. Step 4: Simplify right side
    376.80x = 102,712.79
  5. Step 5: Solve for x
    x = 102,712.79/376.80
  6. Step 6: Final answer
    x = 272.59

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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.