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Finding the Fourth Proportional to 184.07, 253.93 and 121.93

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Solution

The fourth proportional to 184.07, 253.93 and 121.93 is: 168.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.07 : 253.93 = 121.93 : x
  2. Step 2: Convert to fraction form
    184.07/253.93 = 121.93/x
  3. Step 3: Cross multiply
    184.07x = 253.93 × 121.93
  4. Step 4: Simplify right side
    184.07x = 30,961.68
  5. Step 5: Solve for x
    x = 30,961.68/184.07
  6. Step 6: Final answer
    x = 168.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.