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Finding the Fourth Proportional to 207.36, 309.72 and 184.44

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Solution

The fourth proportional to 207.36, 309.72 and 184.44 is: 275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207.36 : 309.72 = 184.44 : x
  2. Step 2: Convert to fraction form
    207.36/309.72 = 184.44/x
  3. Step 3: Cross multiply
    207.36x = 309.72 × 184.44
  4. Step 4: Simplify right side
    207.36x = 57,124.76
  5. Step 5: Solve for x
    x = 57,124.76/207.36
  6. Step 6: Final answer
    x = 275.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.