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Finding the Fourth Proportional to 479.99, 662.24 and 293.48

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Solution

The fourth proportional to 479.99, 662.24 and 293.48 is: 404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.99 : 662.24 = 293.48 : x
  2. Step 2: Convert to fraction form
    479.99/662.24 = 293.48/x
  3. Step 3: Cross multiply
    479.99x = 662.24 × 293.48
  4. Step 4: Simplify right side
    479.99x = 194,354.20
  5. Step 5: Solve for x
    x = 194,354.20/479.99
  6. Step 6: Final answer
    x = 404.91

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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.