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Finding the Fourth Proportional to 483.15, 724.73 and 277.61

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Solution

The fourth proportional to 483.15, 724.73 and 277.61 is: 416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.15 : 724.73 = 277.61 : x
  2. Step 2: Convert to fraction form
    483.15/724.73 = 277.61/x
  3. Step 3: Cross multiply
    483.15x = 724.73 × 277.61
  4. Step 4: Simplify right side
    483.15x = 201,187.28
  5. Step 5: Solve for x
    x = 201,187.28/483.15
  6. Step 6: Final answer
    x = 416.41

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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.