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Finding the Fourth Proportional to 298.74, 448.11 and 235.02

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Solution

The fourth proportional to 298.74, 448.11 and 235.02 is: 352.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.74 : 448.11 = 235.02 : x
  2. Step 2: Convert to fraction form
    298.74/448.11 = 235.02/x
  3. Step 3: Cross multiply
    298.74x = 448.11 × 235.02
  4. Step 4: Simplify right side
    298.74x = 105,314.81
  5. Step 5: Solve for x
    x = 105,314.81/298.74
  6. Step 6: Final answer
    x = 352.53

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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.