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Finding the Fourth Proportional to 183.69, 253.26 and 118.08

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Solution

The fourth proportional to 183.69, 253.26 and 118.08 is: 162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.69 : 253.26 = 118.08 : x
  2. Step 2: Convert to fraction form
    183.69/253.26 = 118.08/x
  3. Step 3: Cross multiply
    183.69x = 253.26 × 118.08
  4. Step 4: Simplify right side
    183.69x = 29,904.94
  5. Step 5: Solve for x
    x = 29,904.94/183.69
  6. Step 6: Final answer
    x = 162.80

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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.