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Finding the Fourth Proportional to 557.30, 835.81 and 232.61

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Solution

The fourth proportional to 557.30, 835.81 and 232.61 is: 348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.30 : 835.81 = 232.61 : x
  2. Step 2: Convert to fraction form
    557.30/835.81 = 232.61/x
  3. Step 3: Cross multiply
    557.30x = 835.81 × 232.61
  4. Step 4: Simplify right side
    557.30x = 194,413.00
  5. Step 5: Solve for x
    x = 194,413.00/557.30
  6. Step 6: Final answer
    x = 348.85

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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.