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Finding the Fourth Proportional to 284.37, 426.18 and 162.45

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Solution

The fourth proportional to 284.37, 426.18 and 162.45 is: 243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.37 : 426.18 = 162.45 : x
  2. Step 2: Convert to fraction form
    284.37/426.18 = 162.45/x
  3. Step 3: Cross multiply
    284.37x = 426.18 × 162.45
  4. Step 4: Simplify right side
    284.37x = 69,232.94
  5. Step 5: Solve for x
    x = 69,232.94/284.37
  6. Step 6: Final answer
    x = 243.46

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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.