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Finding the Fourth Proportional to 622.04, 933.07 and 256.86

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Solution

The fourth proportional to 622.04, 933.07 and 256.86 is: 385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.04 : 933.07 = 256.86 : x
  2. Step 2: Convert to fraction form
    622.04/933.07 = 256.86/x
  3. Step 3: Cross multiply
    622.04x = 933.07 × 256.86
  4. Step 4: Simplify right side
    622.04x = 239,667.72
  5. Step 5: Solve for x
    x = 239,667.72/622.04
  6. Step 6: Final answer
    x = 385.29

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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.