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Finding the Fourth Proportional to 303.30, 453.08 and 242.54

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Solution

The fourth proportional to 303.30, 453.08 and 242.54 is: 362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.30 : 453.08 = 242.54 : x
  2. Step 2: Convert to fraction form
    303.30/453.08 = 242.54/x
  3. Step 3: Cross multiply
    303.30x = 453.08 × 242.54
  4. Step 4: Simplify right side
    303.30x = 109,890.02
  5. Step 5: Solve for x
    x = 109,890.02/303.30
  6. Step 6: Final answer
    x = 362.31

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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.