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Finding the Fourth Proportional to 599.39, 898.71 and 209.20

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Solution

The fourth proportional to 599.39, 898.71 and 209.20 is: 313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.39 : 898.71 = 209.20 : x
  2. Step 2: Convert to fraction form
    599.39/898.71 = 209.20/x
  3. Step 3: Cross multiply
    599.39x = 898.71 × 209.20
  4. Step 4: Simplify right side
    599.39x = 188,010.13
  5. Step 5: Solve for x
    x = 188,010.13/599.39
  6. Step 6: Final answer
    x = 313.67

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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.