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Finding the Fourth Proportional to 336.15, 503.62 and 274.19

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Solution

The fourth proportional to 336.15, 503.62 and 274.19 is: 410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.15 : 503.62 = 274.19 : x
  2. Step 2: Convert to fraction form
    336.15/503.62 = 274.19/x
  3. Step 3: Cross multiply
    336.15x = 503.62 × 274.19
  4. Step 4: Simplify right side
    336.15x = 138,084.36
  5. Step 5: Solve for x
    x = 138,084.36/336.15
  6. Step 6: Final answer
    x = 410.78

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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.