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Finding the Fourth Proportional to 363.16, 544.32 and 189.60

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Solution

The fourth proportional to 363.16, 544.32 and 189.60 is: 284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.16 : 544.32 = 189.60 : x
  2. Step 2: Convert to fraction form
    363.16/544.32 = 189.60/x
  3. Step 3: Cross multiply
    363.16x = 544.32 × 189.60
  4. Step 4: Simplify right side
    363.16x = 103,203.07
  5. Step 5: Solve for x
    x = 103,203.07/363.16
  6. Step 6: Final answer
    x = 284.18

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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.