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Finding the Fourth Proportional to 373.35, 515.12 and 255.23

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Solution

The fourth proportional to 373.35, 515.12 and 255.23 is: 352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.35 : 515.12 = 255.23 : x
  2. Step 2: Convert to fraction form
    373.35/515.12 = 255.23/x
  3. Step 3: Cross multiply
    373.35x = 515.12 × 255.23
  4. Step 4: Simplify right side
    373.35x = 131,470.23
  5. Step 5: Solve for x
    x = 131,470.23/373.35
  6. Step 6: Final answer
    x = 352.14

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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.