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Finding the Fourth Proportional to 339.88, 469.06 and 200.06

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Solution

The fourth proportional to 339.88, 469.06 and 200.06 is: 276.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.88 : 469.06 = 200.06 : x
  2. Step 2: Convert to fraction form
    339.88/469.06 = 200.06/x
  3. Step 3: Cross multiply
    339.88x = 469.06 × 200.06
  4. Step 4: Simplify right side
    339.88x = 93,840.14
  5. Step 5: Solve for x
    x = 93,840.14/339.88
  6. Step 6: Final answer
    x = 276.10

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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.