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Finding the Fourth Proportional to 600.81, 900.91 and 275.90

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Solution

The fourth proportional to 600.81, 900.91 and 275.90 is: 413.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.81 : 900.91 = 275.90 : x
  2. Step 2: Convert to fraction form
    600.81/900.91 = 275.90/x
  3. Step 3: Cross multiply
    600.81x = 900.91 × 275.90
  4. Step 4: Simplify right side
    600.81x = 248,561.07
  5. Step 5: Solve for x
    x = 248,561.07/600.81
  6. Step 6: Final answer
    x = 413.71

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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.