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Finding the Fourth Proportional to 598.79, 897.96 and 208.69

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Solution

The fourth proportional to 598.79, 897.96 and 208.69 is: 312.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.79 : 897.96 = 208.69 : x
  2. Step 2: Convert to fraction form
    598.79/897.96 = 208.69/x
  3. Step 3: Cross multiply
    598.79x = 897.96 × 208.69
  4. Step 4: Simplify right side
    598.79x = 187,396.79
  5. Step 5: Solve for x
    x = 187,396.79/598.79
  6. Step 6: Final answer
    x = 312.96

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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.