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Finding the Fourth Proportional to 365.16, 503.77 and 272.13

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Solution

The fourth proportional to 365.16, 503.77 and 272.13 is: 375.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.16 : 503.77 = 272.13 : x
  2. Step 2: Convert to fraction form
    365.16/503.77 = 272.13/x
  3. Step 3: Cross multiply
    365.16x = 503.77 × 272.13
  4. Step 4: Simplify right side
    365.16x = 137,090.93
  5. Step 5: Solve for x
    x = 137,090.93/365.16
  6. Step 6: Final answer
    x = 375.43

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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.