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Finding the Fourth Proportional to 181.98, 271.63 and 156.46

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Solution

The fourth proportional to 181.98, 271.63 and 156.46 is: 233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.98 : 271.63 = 156.46 : x
  2. Step 2: Convert to fraction form
    181.98/271.63 = 156.46/x
  3. Step 3: Cross multiply
    181.98x = 271.63 × 156.46
  4. Step 4: Simplify right side
    181.98x = 42,499.23
  5. Step 5: Solve for x
    x = 42,499.23/181.98
  6. Step 6: Final answer
    x = 233.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.