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Finding the Fourth Proportional to 303.21, 454.03 and 242.15

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Solution

The fourth proportional to 303.21, 454.03 and 242.15 is: 362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.21 : 454.03 = 242.15 : x
  2. Step 2: Convert to fraction form
    303.21/454.03 = 242.15/x
  3. Step 3: Cross multiply
    303.21x = 454.03 × 242.15
  4. Step 4: Simplify right side
    303.21x = 109,940.49
  5. Step 5: Solve for x
    x = 109,940.49/303.21
  6. Step 6: Final answer
    x = 362.59

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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.