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Finding the Fourth Proportional to 598.76, 898.18 and 208.76

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Solution

The fourth proportional to 598.76, 898.18 and 208.76 is: 313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.76 : 898.18 = 208.76 : x
  2. Step 2: Convert to fraction form
    598.76/898.18 = 208.76/x
  3. Step 3: Cross multiply
    598.76x = 898.18 × 208.76
  4. Step 4: Simplify right side
    598.76x = 187,504.06
  5. Step 5: Solve for x
    x = 187,504.06/598.76
  6. Step 6: Final answer
    x = 313.15

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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.