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Finding the Fourth Proportional to 335.43, 501.45 and 300.65

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Solution

The fourth proportional to 335.43, 501.45 and 300.65 is: 449.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.43 : 501.45 = 300.65 : x
  2. Step 2: Convert to fraction form
    335.43/501.45 = 300.65/x
  3. Step 3: Cross multiply
    335.43x = 501.45 × 300.65
  4. Step 4: Simplify right side
    335.43x = 150,760.94
  5. Step 5: Solve for x
    x = 150,760.94/335.43
  6. Step 6: Final answer
    x = 449.46

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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.