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Finding the Fourth Proportional to 182.64, 272.78 and 155.64

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Solution

The fourth proportional to 182.64, 272.78 and 155.64 is: 232.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.64 : 272.78 = 155.64 : x
  2. Step 2: Convert to fraction form
    182.64/272.78 = 155.64/x
  3. Step 3: Cross multiply
    182.64x = 272.78 × 155.64
  4. Step 4: Simplify right side
    182.64x = 42,455.48
  5. Step 5: Solve for x
    x = 42,455.48/182.64
  6. Step 6: Final answer
    x = 232.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.