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Finding the Fourth Proportional to 599.22, 898.28 and 209

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Solution

The fourth proportional to 599.22, 898.28 and 209 is: 313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.22 : 898.28 = 209 : x
  2. Step 2: Convert to fraction form
    599.22/898.28 = 209/x
  3. Step 3: Cross multiply
    599.22x = 898.28 × 209
  4. Step 4: Simplify right side
    599.22x = 187,740.52
  5. Step 5: Solve for x
    x = 187,740.52/599.22
  6. Step 6: Final answer
    x = 313.31

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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.