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Finding the Fourth Proportional to 497.00, 685.77 and 275.94

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Solution

The fourth proportional to 497.00, 685.77 and 275.94 is: 380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.00 : 685.77 = 275.94 : x
  2. Step 2: Convert to fraction form
    497.00/685.77 = 275.94/x
  3. Step 3: Cross multiply
    497.00x = 685.77 × 275.94
  4. Step 4: Simplify right side
    497.00x = 189,231.37
  5. Step 5: Solve for x
    x = 189,231.37/497.00
  6. Step 6: Final answer
    x = 380.75

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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.