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Finding the Fourth Proportional to 599.79, 899.46 and 209.69

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Solution

The fourth proportional to 599.79, 899.46 and 209.69 is: 314.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.79 : 899.46 = 209.69 : x
  2. Step 2: Convert to fraction form
    599.79/899.46 = 209.69/x
  3. Step 3: Cross multiply
    599.79x = 899.46 × 209.69
  4. Step 4: Simplify right side
    599.79x = 188,607.77
  5. Step 5: Solve for x
    x = 188,607.77/599.79
  6. Step 6: Final answer
    x = 314.46

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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.