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Finding the Fourth Proportional to 537.05, 805.55 and 228.71

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Solution

The fourth proportional to 537.05, 805.55 and 228.71 is: 343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.05 : 805.55 = 228.71 : x
  2. Step 2: Convert to fraction form
    537.05/805.55 = 228.71/x
  3. Step 3: Cross multiply
    537.05x = 805.55 × 228.71
  4. Step 4: Simplify right side
    537.05x = 184,238.21
  5. Step 5: Solve for x
    x = 184,238.21/537.05
  6. Step 6: Final answer
    x = 343.05

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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.