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Finding the Fourth Proportional to 341.88, 513.18 and 255.18

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Solution

The fourth proportional to 341.88, 513.18 and 255.18 is: 383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.88 : 513.18 = 255.18 : x
  2. Step 2: Convert to fraction form
    341.88/513.18 = 255.18/x
  3. Step 3: Cross multiply
    341.88x = 513.18 × 255.18
  4. Step 4: Simplify right side
    341.88x = 130,953.27
  5. Step 5: Solve for x
    x = 130,953.27/341.88
  6. Step 6: Final answer
    x = 383.04

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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.