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Finding the Fourth Proportional to 229.77, 317.10 and 131.54

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Solution

The fourth proportional to 229.77, 317.10 and 131.54 is: 181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.77 : 317.10 = 131.54 : x
  2. Step 2: Convert to fraction form
    229.77/317.10 = 131.54/x
  3. Step 3: Cross multiply
    229.77x = 317.10 × 131.54
  4. Step 4: Simplify right side
    229.77x = 41,711.33
  5. Step 5: Solve for x
    x = 41,711.33/229.77
  6. Step 6: Final answer
    x = 181.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.