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Finding the Fourth Proportional to 284.36, 425.94 and 176

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Solution

The fourth proportional to 284.36, 425.94 and 176 is: 263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.36 : 425.94 = 176 : x
  2. Step 2: Convert to fraction form
    284.36/425.94 = 176/x
  3. Step 3: Cross multiply
    284.36x = 425.94 × 176
  4. Step 4: Simplify right side
    284.36x = 74,965.44
  5. Step 5: Solve for x
    x = 74,965.44/284.36
  6. Step 6: Final answer
    x = 263.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.