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Finding the Fourth Proportional to 358.98, 535.44 and 301.56

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Solution

The fourth proportional to 358.98, 535.44 and 301.56 is: 449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.98 : 535.44 = 301.56 : x
  2. Step 2: Convert to fraction form
    358.98/535.44 = 301.56/x
  3. Step 3: Cross multiply
    358.98x = 535.44 × 301.56
  4. Step 4: Simplify right side
    358.98x = 161,467.29
  5. Step 5: Solve for x
    x = 161,467.29/358.98
  6. Step 6: Final answer
    x = 449.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.