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Finding the Fourth Proportional to 374.42, 561.87 and 181.94

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Solution

The fourth proportional to 374.42, 561.87 and 181.94 is: 273.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.42 : 561.87 = 181.94 : x
  2. Step 2: Convert to fraction form
    374.42/561.87 = 181.94/x
  3. Step 3: Cross multiply
    374.42x = 561.87 × 181.94
  4. Step 4: Simplify right side
    374.42x = 102,226.63
  5. Step 5: Solve for x
    x = 102,226.63/374.42
  6. Step 6: Final answer
    x = 273.03

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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.