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Finding the Fourth Proportional to 298.07, 447.03 and 103.02

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Solution

The fourth proportional to 298.07, 447.03 and 103.02 is: 154.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.07 : 447.03 = 103.02 : x
  2. Step 2: Convert to fraction form
    298.07/447.03 = 103.02/x
  3. Step 3: Cross multiply
    298.07x = 447.03 × 103.02
  4. Step 4: Simplify right side
    298.07x = 46,053.03
  5. Step 5: Solve for x
    x = 46,053.03/298.07
  6. Step 6: Final answer
    x = 154.51

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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.