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Finding the Fourth Proportional to 284.38, 425.93 and 162.61

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Solution

The fourth proportional to 284.38, 425.93 and 162.61 is: 243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.38 : 425.93 = 162.61 : x
  2. Step 2: Convert to fraction form
    284.38/425.93 = 162.61/x
  3. Step 3: Cross multiply
    284.38x = 425.93 × 162.61
  4. Step 4: Simplify right side
    284.38x = 69,258.60
  5. Step 5: Solve for x
    x = 69,258.60/284.38
  6. Step 6: Final answer
    x = 243.54

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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.