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Finding the Fourth Proportional to 353.34, 531.99 and 245.79

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Solution

The fourth proportional to 353.34, 531.99 and 245.79 is: 370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.34 : 531.99 = 245.79 : x
  2. Step 2: Convert to fraction form
    353.34/531.99 = 245.79/x
  3. Step 3: Cross multiply
    353.34x = 531.99 × 245.79
  4. Step 4: Simplify right side
    353.34x = 130,757.82
  5. Step 5: Solve for x
    x = 130,757.82/353.34
  6. Step 6: Final answer
    x = 370.06

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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.