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Finding the Fourth Proportional to 181.18, 270.53 and 155.53

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Solution

The fourth proportional to 181.18, 270.53 and 155.53 is: 232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.18 : 270.53 = 155.53 : x
  2. Step 2: Convert to fraction form
    181.18/270.53 = 155.53/x
  3. Step 3: Cross multiply
    181.18x = 270.53 × 155.53
  4. Step 4: Simplify right side
    181.18x = 42,075.53
  5. Step 5: Solve for x
    x = 42,075.53/181.18
  6. Step 6: Final answer
    x = 232.23

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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.