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Finding the Fourth Proportional to 365.74, 505.50 and 268.18

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Solution

The fourth proportional to 365.74, 505.50 and 268.18 is: 370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.74 : 505.50 = 268.18 : x
  2. Step 2: Convert to fraction form
    365.74/505.50 = 268.18/x
  3. Step 3: Cross multiply
    365.74x = 505.50 × 268.18
  4. Step 4: Simplify right side
    365.74x = 135,564.99
  5. Step 5: Solve for x
    x = 135,564.99/365.74
  6. Step 6: Final answer
    x = 370.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.