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Finding the Fourth Proportional to 187.04, 256.60 and 181.60

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Solution

The fourth proportional to 187.04, 256.60 and 181.60 is: 249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.04 : 256.60 = 181.60 : x
  2. Step 2: Convert to fraction form
    187.04/256.60 = 181.60/x
  3. Step 3: Cross multiply
    187.04x = 256.60 × 181.60
  4. Step 4: Simplify right side
    187.04x = 46,598.56
  5. Step 5: Solve for x
    x = 46,598.56/187.04
  6. Step 6: Final answer
    x = 249.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.