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Finding the Fourth Proportional to 183.71, 276.65 and 155.00

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Solution

The fourth proportional to 183.71, 276.65 and 155.00 is: 233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    183.71 : 276.65 = 155.00 : x
  2. Step 2: Convert to fraction form
    183.71/276.65 = 155.00/x
  3. Step 3: Cross multiply
    183.71x = 276.65 × 155.00
  4. Step 4: Simplify right side
    183.71x = 42,878.59
  5. Step 5: Solve for x
    x = 42,878.59/183.71
  6. Step 6: Final answer
    x = 233.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.