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Finding the Fourth Proportional to 446.95, 616.77 and 281.25

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Solution

The fourth proportional to 446.95, 616.77 and 281.25 is: 388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.95 : 616.77 = 281.25 : x
  2. Step 2: Convert to fraction form
    446.95/616.77 = 281.25/x
  3. Step 3: Cross multiply
    446.95x = 616.77 × 281.25
  4. Step 4: Simplify right side
    446.95x = 173,466.56
  5. Step 5: Solve for x
    x = 173,466.56/446.95
  6. Step 6: Final answer
    x = 388.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.