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Finding the Fourth Proportional to 498.39, 747.35 and 300.94

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Solution

The fourth proportional to 498.39, 747.35 and 300.94 is: 451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.39 : 747.35 = 300.94 : x
  2. Step 2: Convert to fraction form
    498.39/747.35 = 300.94/x
  3. Step 3: Cross multiply
    498.39x = 747.35 × 300.94
  4. Step 4: Simplify right side
    498.39x = 224,903.16
  5. Step 5: Solve for x
    x = 224,903.16/498.39
  6. Step 6: Final answer
    x = 451.26

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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.