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Finding the Fourth Proportional to 622.51, 933.55 and 275.61

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Solution

The fourth proportional to 622.51, 933.55 and 275.61 is: 413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.51 : 933.55 = 275.61 : x
  2. Step 2: Convert to fraction form
    622.51/933.55 = 275.61/x
  3. Step 3: Cross multiply
    622.51x = 933.55 × 275.61
  4. Step 4: Simplify right side
    622.51x = 257,295.72
  5. Step 5: Solve for x
    x = 257,295.72/622.51
  6. Step 6: Final answer
    x = 413.32

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Double scale
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Similar ratio
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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.