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Finding the Fourth Proportional to 537.25, 805.19 and 228.74

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Solution

The fourth proportional to 537.25, 805.19 and 228.74 is: 342.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.25 : 805.19 = 228.74 : x
  2. Step 2: Convert to fraction form
    537.25/805.19 = 228.74/x
  3. Step 3: Cross multiply
    537.25x = 805.19 × 228.74
  4. Step 4: Simplify right side
    537.25x = 184,179.16
  5. Step 5: Solve for x
    x = 184,179.16/537.25
  6. Step 6: Final answer
    x = 342.82

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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.