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Finding the Fourth Proportional to 557.20, 835.80 and 232.57

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Solution

The fourth proportional to 557.20, 835.80 and 232.57 is: 348.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.20 : 835.80 = 232.57 : x
  2. Step 2: Convert to fraction form
    557.20/835.80 = 232.57/x
  3. Step 3: Cross multiply
    557.20x = 835.80 × 232.57
  4. Step 4: Simplify right side
    557.20x = 194,382.01
  5. Step 5: Solve for x
    x = 194,382.01/557.20
  6. Step 6: Final answer
    x = 348.86

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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.