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Finding the Fourth Proportional to 339.79, 468.88 and 200.00

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Solution

The fourth proportional to 339.79, 468.88 and 200.00 is: 275.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.79 : 468.88 = 200.00 : x
  2. Step 2: Convert to fraction form
    339.79/468.88 = 200.00/x
  3. Step 3: Cross multiply
    339.79x = 468.88 × 200.00
  4. Step 4: Simplify right side
    339.79x = 93,772.66
  5. Step 5: Solve for x
    x = 93,772.66/339.79
  6. Step 6: Final answer
    x = 275.98

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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.