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Finding the Fourth Proportional to 557.66, 836.82 and 228.54

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Solution

The fourth proportional to 557.66, 836.82 and 228.54 is: 342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.66 : 836.82 = 228.54 : x
  2. Step 2: Convert to fraction form
    557.66/836.82 = 228.54/x
  3. Step 3: Cross multiply
    557.66x = 836.82 × 228.54
  4. Step 4: Simplify right side
    557.66x = 191,246.84
  5. Step 5: Solve for x
    x = 191,246.84/557.66
  6. Step 6: Final answer
    x = 342.95

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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.