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Finding the Fourth Proportional to 622, 933 and 237.40

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Solution

The fourth proportional to 622, 933 and 237.40 is: 356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622 : 933 = 237.40 : x
  2. Step 2: Convert to fraction form
    622/933 = 237.40/x
  3. Step 3: Cross multiply
    622x = 933 × 237.40
  4. Step 4: Simplify right side
    622x = 221,494.20
  5. Step 5: Solve for x
    x = 221,494.20/622
  6. Step 6: Final answer
    x = 356.10

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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.