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Finding the Fourth Proportional to 368.74, 504.51 and 367.21

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Solution

The fourth proportional to 368.74, 504.51 and 367.21 is: 502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.74 : 504.51 = 367.21 : x
  2. Step 2: Convert to fraction form
    368.74/504.51 = 367.21/x
  3. Step 3: Cross multiply
    368.74x = 504.51 × 367.21
  4. Step 4: Simplify right side
    368.74x = 185,261.12
  5. Step 5: Solve for x
    x = 185,261.12/368.74
  6. Step 6: Final answer
    x = 502.42

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.