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Finding the Fourth Proportional to 181.80, 250.78 and 150.84

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Solution

The fourth proportional to 181.80, 250.78 and 150.84 is: 208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.80 : 250.78 = 150.84 : x
  2. Step 2: Convert to fraction form
    181.80/250.78 = 150.84/x
  3. Step 3: Cross multiply
    181.80x = 250.78 × 150.84
  4. Step 4: Simplify right side
    181.80x = 37,827.66
  5. Step 5: Solve for x
    x = 37,827.66/181.80
  6. Step 6: Final answer
    x = 208.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.