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Finding the Fourth Proportional to 181.47, 271.03 and 157.17

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Solution

The fourth proportional to 181.47, 271.03 and 157.17 is: 234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.47 : 271.03 = 157.17 : x
  2. Step 2: Convert to fraction form
    181.47/271.03 = 157.17/x
  3. Step 3: Cross multiply
    181.47x = 271.03 × 157.17
  4. Step 4: Simplify right side
    181.47x = 42,597.39
  5. Step 5: Solve for x
    x = 42,597.39/181.47
  6. Step 6: Final answer
    x = 234.74

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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.