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Finding the Fourth Proportional to 181.15, 270.58 and 155.55

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Solution

The fourth proportional to 181.15, 270.58 and 155.55 is: 232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.15 : 270.58 = 155.55 : x
  2. Step 2: Convert to fraction form
    181.15/270.58 = 155.55/x
  3. Step 3: Cross multiply
    181.15x = 270.58 × 155.55
  4. Step 4: Simplify right side
    181.15x = 42,088.72
  5. Step 5: Solve for x
    x = 42,088.72/181.15
  6. Step 6: Final answer
    x = 232.34

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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.