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Finding the Fourth Proportional to 183.39, 253.05 and 109.70

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Solution

The fourth proportional to 183.39, 253.05 and 109.70 is: 151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.39 : 253.05 = 109.70 : x
  2. Step 2: Convert to fraction form
    183.39/253.05 = 109.70/x
  3. Step 3: Cross multiply
    183.39x = 253.05 × 109.70
  4. Step 4: Simplify right side
    183.39x = 27,758.32
  5. Step 5: Solve for x
    x = 27,758.32/183.39
  6. Step 6: Final answer
    x = 151.36

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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.