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Finding the Fourth Proportional to 305.36, 455.41 and 301.24

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Solution

The fourth proportional to 305.36, 455.41 and 301.24 is: 449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305.36 : 455.41 = 301.24 : x
  2. Step 2: Convert to fraction form
    305.36/455.41 = 301.24/x
  3. Step 3: Cross multiply
    305.36x = 455.41 × 301.24
  4. Step 4: Simplify right side
    305.36x = 137,187.71
  5. Step 5: Solve for x
    x = 137,187.71/305.36
  6. Step 6: Final answer
    x = 449.27

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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.