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Finding the Fourth Proportional to 598.49, 898.58 and 306.20

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Solution

The fourth proportional to 598.49, 898.58 and 306.20 is: 459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    598.49 : 898.58 = 306.20 : x
  2. Step 2: Convert to fraction form
    598.49/898.58 = 306.20/x
  3. Step 3: Cross multiply
    598.49x = 898.58 × 306.20
  4. Step 4: Simplify right side
    598.49x = 275,149.63
  5. Step 5: Solve for x
    x = 275,149.63/598.49
  6. Step 6: Final answer
    x = 459.74

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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.