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Finding the Fourth Proportional to 328.63, 453.02 and 235.48

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Solution

The fourth proportional to 328.63, 453.02 and 235.48 is: 324.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    328.63 : 453.02 = 235.48 : x
  2. Step 2: Convert to fraction form
    328.63/453.02 = 235.48/x
  3. Step 3: Cross multiply
    328.63x = 453.02 × 235.48
  4. Step 4: Simplify right side
    328.63x = 106,677.15
  5. Step 5: Solve for x
    x = 106,677.15/328.63
  6. Step 6: Final answer
    x = 324.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.