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Finding the Fourth Proportional to 550.30, 825.48 and 275.62

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Solution

The fourth proportional to 550.30, 825.48 and 275.62 is: 413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.30 : 825.48 = 275.62 : x
  2. Step 2: Convert to fraction form
    550.30/825.48 = 275.62/x
  3. Step 3: Cross multiply
    550.30x = 825.48 × 275.62
  4. Step 4: Simplify right side
    550.30x = 227,518.80
  5. Step 5: Solve for x
    x = 227,518.80/550.30
  6. Step 6: Final answer
    x = 413.45

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Double scale
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Similar ratio
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1.5x scale

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.