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Finding the Fourth Proportional to 297.07, 443.07 and 254.07

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Solution

The fourth proportional to 297.07, 443.07 and 254.07 is: 378.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.07 : 443.07 = 254.07 : x
  2. Step 2: Convert to fraction form
    297.07/443.07 = 254.07/x
  3. Step 3: Cross multiply
    297.07x = 443.07 × 254.07
  4. Step 4: Simplify right side
    297.07x = 112,570.79
  5. Step 5: Solve for x
    x = 112,570.79/297.07
  6. Step 6: Final answer
    x = 378.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.