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Finding the Fourth Proportional to 574.65, 793.13 and 353.70

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Solution

The fourth proportional to 574.65, 793.13 and 353.70 is: 488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    574.65 : 793.13 = 353.70 : x
  2. Step 2: Convert to fraction form
    574.65/793.13 = 353.70/x
  3. Step 3: Cross multiply
    574.65x = 793.13 × 353.70
  4. Step 4: Simplify right side
    574.65x = 280,528.31
  5. Step 5: Solve for x
    x = 280,528.31/574.65
  6. Step 6: Final answer
    x = 488.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.