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Finding the Fourth Proportional to 598.50, 898.47 and 338.69

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Solution

The fourth proportional to 598.50, 898.47 and 338.69 is: 508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.50 : 898.47 = 338.69 : x
  2. Step 2: Convert to fraction form
    598.50/898.47 = 338.69/x
  3. Step 3: Cross multiply
    598.50x = 898.47 × 338.69
  4. Step 4: Simplify right side
    598.50x = 304,298.31
  5. Step 5: Solve for x
    x = 304,298.31/598.50
  6. Step 6: Final answer
    x = 508.43

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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.