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Finding the Fourth Proportional to 209.94, 315.36 and 184.02

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Solution

The fourth proportional to 209.94, 315.36 and 184.02 is: 276.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209.94 : 315.36 = 184.02 : x
  2. Step 2: Convert to fraction form
    209.94/315.36 = 184.02/x
  3. Step 3: Cross multiply
    209.94x = 315.36 × 184.02
  4. Step 4: Simplify right side
    209.94x = 58,032.55
  5. Step 5: Solve for x
    x = 58,032.55/209.94
  6. Step 6: Final answer
    x = 276.42

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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.