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Finding the Fourth Proportional to 183.63, 253.40 and 118.13

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Solution

The fourth proportional to 183.63, 253.40 and 118.13 is: 163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.63 : 253.40 = 118.13 : x
  2. Step 2: Convert to fraction form
    183.63/253.40 = 118.13/x
  3. Step 3: Cross multiply
    183.63x = 253.40 × 118.13
  4. Step 4: Simplify right side
    183.63x = 29,932.28
  5. Step 5: Solve for x
    x = 29,932.28/183.63
  6. Step 6: Final answer
    x = 163.00

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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.