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Finding the Fourth Proportional to 303.30, 455.28 and 195.18

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Solution

The fourth proportional to 303.30, 455.28 and 195.18 is: 292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.30 : 455.28 = 195.18 : x
  2. Step 2: Convert to fraction form
    303.30/455.28 = 195.18/x
  3. Step 3: Cross multiply
    303.30x = 455.28 × 195.18
  4. Step 4: Simplify right side
    303.30x = 88,861.55
  5. Step 5: Solve for x
    x = 88,861.55/303.30
  6. Step 6: Final answer
    x = 292.98

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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.