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Finding the Fourth Proportional to 336.45, 504.51 and 141.39

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Solution

The fourth proportional to 336.45, 504.51 and 141.39 is: 212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.45 : 504.51 = 141.39 : x
  2. Step 2: Convert to fraction form
    336.45/504.51 = 141.39/x
  3. Step 3: Cross multiply
    336.45x = 504.51 × 141.39
  4. Step 4: Simplify right side
    336.45x = 71,331.96
  5. Step 5: Solve for x
    x = 71,331.96/336.45
  6. Step 6: Final answer
    x = 212.02

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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.