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Finding the Fourth Proportional to 622.70, 933.70 and 275.63

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Solution

The fourth proportional to 622.70, 933.70 and 275.63 is: 413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.70 : 933.70 = 275.63 : x
  2. Step 2: Convert to fraction form
    622.70/933.70 = 275.63/x
  3. Step 3: Cross multiply
    622.70x = 933.70 × 275.63
  4. Step 4: Simplify right side
    622.70x = 257,355.73
  5. Step 5: Solve for x
    x = 257,355.73/622.70
  6. Step 6: Final answer
    x = 413.29

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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.