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Finding the Fourth Proportional to 557.14, 835.99 and 228.31

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Solution

The fourth proportional to 557.14, 835.99 and 228.31 is: 342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.14 : 835.99 = 228.31 : x
  2. Step 2: Convert to fraction form
    557.14/835.99 = 228.31/x
  3. Step 3: Cross multiply
    557.14x = 835.99 × 228.31
  4. Step 4: Simplify right side
    557.14x = 190,866.40
  5. Step 5: Solve for x
    x = 190,866.40/557.14
  6. Step 6: Final answer
    x = 342.59

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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.