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Finding the Fourth Proportional to 284.15, 426.33 and 101.55

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Solution

The fourth proportional to 284.15, 426.33 and 101.55 is: 152.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.15 : 426.33 = 101.55 : x
  2. Step 2: Convert to fraction form
    284.15/426.33 = 101.55/x
  3. Step 3: Cross multiply
    284.15x = 426.33 × 101.55
  4. Step 4: Simplify right side
    284.15x = 43,293.81
  5. Step 5: Solve for x
    x = 43,293.81/284.15
  6. Step 6: Final answer
    x = 152.37

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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.