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Finding the Fourth Proportional to 598.10, 898.08 and 338.40

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Solution

The fourth proportional to 598.10, 898.08 and 338.40 is: 508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.10 : 898.08 = 338.40 : x
  2. Step 2: Convert to fraction form
    598.10/898.08 = 338.40/x
  3. Step 3: Cross multiply
    598.10x = 898.08 × 338.40
  4. Step 4: Simplify right side
    598.10x = 303,910.27
  5. Step 5: Solve for x
    x = 303,910.27/598.10
  6. Step 6: Final answer
    x = 508.13

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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.