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Finding the Fourth Proportional to 333.22, 498.54 and 290.38

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Solution

The fourth proportional to 333.22, 498.54 and 290.38 is: 434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.22 : 498.54 = 290.38 : x
  2. Step 2: Convert to fraction form
    333.22/498.54 = 290.38/x
  3. Step 3: Cross multiply
    333.22x = 498.54 × 290.38
  4. Step 4: Simplify right side
    333.22x = 144,766.05
  5. Step 5: Solve for x
    x = 144,766.05/333.22
  6. Step 6: Final answer
    x = 434.45

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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.