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Finding the Fourth Proportional to 357.06, 534.68 and 298.97

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Solution

The fourth proportional to 357.06, 534.68 and 298.97 is: 447.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.06 : 534.68 = 298.97 : x
  2. Step 2: Convert to fraction form
    357.06/534.68 = 298.97/x
  3. Step 3: Cross multiply
    357.06x = 534.68 × 298.97
  4. Step 4: Simplify right side
    357.06x = 159,853.28
  5. Step 5: Solve for x
    x = 159,853.28/357.06
  6. Step 6: Final answer
    x = 447.69

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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.