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Finding the Fourth Proportional to 368.95, 552.95 and 186.25

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Solution

The fourth proportional to 368.95, 552.95 and 186.25 is: 279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.95 : 552.95 = 186.25 : x
  2. Step 2: Convert to fraction form
    368.95/552.95 = 186.25/x
  3. Step 3: Cross multiply
    368.95x = 552.95 × 186.25
  4. Step 4: Simplify right side
    368.95x = 102,985.09
  5. Step 5: Solve for x
    x = 102,985.09/368.95
  6. Step 6: Final answer
    x = 279.13

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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.