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Finding the Fourth Proportional to 377.63, 566.45 and 121.13

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Solution

The fourth proportional to 377.63, 566.45 and 121.13 is: 181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.63 : 566.45 = 121.13 : x
  2. Step 2: Convert to fraction form
    377.63/566.45 = 121.13/x
  3. Step 3: Cross multiply
    377.63x = 566.45 × 121.13
  4. Step 4: Simplify right side
    377.63x = 68,610.65
  5. Step 5: Solve for x
    x = 68,610.65/377.63
  6. Step 6: Final answer
    x = 181.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.