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Finding the Fourth Proportional to 181.74, 250.86 and 135.26

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Solution

The fourth proportional to 181.74, 250.86 and 135.26 is: 186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.74 : 250.86 = 135.26 : x
  2. Step 2: Convert to fraction form
    181.74/250.86 = 135.26/x
  3. Step 3: Cross multiply
    181.74x = 250.86 × 135.26
  4. Step 4: Simplify right side
    181.74x = 33,931.32
  5. Step 5: Solve for x
    x = 33,931.32/181.74
  6. Step 6: Final answer
    x = 186.70

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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.