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Finding the Fourth Proportional to 368.49, 552.23 and 203.71

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Solution

The fourth proportional to 368.49, 552.23 and 203.71 is: 305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.49 : 552.23 = 203.71 : x
  2. Step 2: Convert to fraction form
    368.49/552.23 = 203.71/x
  3. Step 3: Cross multiply
    368.49x = 552.23 × 203.71
  4. Step 4: Simplify right side
    368.49x = 112,494.77
  5. Step 5: Solve for x
    x = 112,494.77/368.49
  6. Step 6: Final answer
    x = 305.29

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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.