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Finding the Fourth Proportional to 301.98, 452.61 and 247.20

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Solution

The fourth proportional to 301.98, 452.61 and 247.20 is: 370.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.98 : 452.61 = 247.20 : x
  2. Step 2: Convert to fraction form
    301.98/452.61 = 247.20/x
  3. Step 3: Cross multiply
    301.98x = 452.61 × 247.20
  4. Step 4: Simplify right side
    301.98x = 111,885.19
  5. Step 5: Solve for x
    x = 111,885.19/301.98
  6. Step 6: Final answer
    x = 370.51

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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.