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Finding the Fourth Proportional to 406.41, 611.68 and 304.24

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Solution

The fourth proportional to 406.41, 611.68 and 304.24 is: 457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.41 : 611.68 = 304.24 : x
  2. Step 2: Convert to fraction form
    406.41/611.68 = 304.24/x
  3. Step 3: Cross multiply
    406.41x = 611.68 × 304.24
  4. Step 4: Simplify right side
    406.41x = 186,097.52
  5. Step 5: Solve for x
    x = 186,097.52/406.41
  6. Step 6: Final answer
    x = 457.91

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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.