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Finding the Fourth Proportional to 333.33, 496.91 and 328.07

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Solution

The fourth proportional to 333.33, 496.91 and 328.07 is: 489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.33 : 496.91 = 328.07 : x
  2. Step 2: Convert to fraction form
    333.33/496.91 = 328.07/x
  3. Step 3: Cross multiply
    333.33x = 496.91 × 328.07
  4. Step 4: Simplify right side
    333.33x = 163,017.14
  5. Step 5: Solve for x
    x = 163,017.14/333.33
  6. Step 6: Final answer
    x = 489.06

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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.