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Finding the Fourth Proportional to 332.36, 494.94 and 330.74

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Solution

The fourth proportional to 332.36, 494.94 and 330.74 is: 492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.36 : 494.94 = 330.74 : x
  2. Step 2: Convert to fraction form
    332.36/494.94 = 330.74/x
  3. Step 3: Cross multiply
    332.36x = 494.94 × 330.74
  4. Step 4: Simplify right side
    332.36x = 163,693.98
  5. Step 5: Solve for x
    x = 163,693.98/332.36
  6. Step 6: Final answer
    x = 492.53

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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.