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Finding the Fourth Proportional to 275.65, 413.67 and 210.83

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Solution

The fourth proportional to 275.65, 413.67 and 210.83 is: 316.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275.65 : 413.67 = 210.83 : x
  2. Step 2: Convert to fraction form
    275.65/413.67 = 210.83/x
  3. Step 3: Cross multiply
    275.65x = 413.67 × 210.83
  4. Step 4: Simplify right side
    275.65x = 87,216.25
  5. Step 5: Solve for x
    x = 87,216.25/275.65
  6. Step 6: Final answer
    x = 316.41

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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.