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Finding the Fourth Proportional to 292.12, 402.96 and 181.56

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Solution

The fourth proportional to 292.12, 402.96 and 181.56 is: 250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.12 : 402.96 = 181.56 : x
  2. Step 2: Convert to fraction form
    292.12/402.96 = 181.56/x
  3. Step 3: Cross multiply
    292.12x = 402.96 × 181.56
  4. Step 4: Simplify right side
    292.12x = 73,161.42
  5. Step 5: Solve for x
    x = 73,161.42/292.12
  6. Step 6: Final answer
    x = 250.45

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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.