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Finding the Fourth Proportional to 334.85, 498.71 and 329.79

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Solution

The fourth proportional to 334.85, 498.71 and 329.79 is: 491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.85 : 498.71 = 329.79 : x
  2. Step 2: Convert to fraction form
    334.85/498.71 = 329.79/x
  3. Step 3: Cross multiply
    334.85x = 498.71 × 329.79
  4. Step 4: Simplify right side
    334.85x = 164,467.92
  5. Step 5: Solve for x
    x = 164,467.92/334.85
  6. Step 6: Final answer
    x = 491.18

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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.