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Finding the Fourth Proportional to 291.63, 439.04 and 227.01

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Solution

The fourth proportional to 291.63, 439.04 and 227.01 is: 341.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.63 : 439.04 = 227.01 : x
  2. Step 2: Convert to fraction form
    291.63/439.04 = 227.01/x
  3. Step 3: Cross multiply
    291.63x = 439.04 × 227.01
  4. Step 4: Simplify right side
    291.63x = 99,665.34
  5. Step 5: Solve for x
    x = 99,665.34/291.63
  6. Step 6: Final answer
    x = 341.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.