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Finding the Fourth Proportional to 368.75, 553.16 and 186.14

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Solution

The fourth proportional to 368.75, 553.16 and 186.14 is: 279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.75 : 553.16 = 186.14 : x
  2. Step 2: Convert to fraction form
    368.75/553.16 = 186.14/x
  3. Step 3: Cross multiply
    368.75x = 553.16 × 186.14
  4. Step 4: Simplify right side
    368.75x = 102,967.05
  5. Step 5: Solve for x
    x = 102,967.05/368.75
  6. Step 6: Final answer
    x = 279.23

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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.