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Finding the Fourth Proportional to 398.63, 597.63 and 300.94

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Solution

The fourth proportional to 398.63, 597.63 and 300.94 is: 451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    398.63 : 597.63 = 300.94 : x
  2. Step 2: Convert to fraction form
    398.63/597.63 = 300.94/x
  3. Step 3: Cross multiply
    398.63x = 597.63 × 300.94
  4. Step 4: Simplify right side
    398.63x = 179,850.39
  5. Step 5: Solve for x
    x = 179,850.39/398.63
  6. Step 6: Final answer
    x = 451.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.