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Finding the Fourth Proportional to 336.70, 504.58 and 326.84

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Solution

The fourth proportional to 336.70, 504.58 and 326.84 is: 489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.70 : 504.58 = 326.84 : x
  2. Step 2: Convert to fraction form
    336.70/504.58 = 326.84/x
  3. Step 3: Cross multiply
    336.70x = 504.58 × 326.84
  4. Step 4: Simplify right side
    336.70x = 164,916.93
  5. Step 5: Solve for x
    x = 164,916.93/336.70
  6. Step 6: Final answer
    x = 489.80

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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.