Finding the Fourth Proportional to 298.74, 412.86 and 225.03
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Solution
The fourth proportional to 298.74, 412.86 and 225.03 is: 310.99
Step by Step Solution
- Step 1: Write the proportion equation
298.74 : 412.86 = 225.03 : x - Step 2: Convert to fraction form
298.74/412.86 = 225.03/x - Step 3: Cross multiply
298.74x = 412.86 × 225.03 - Step 4: Simplify right side
298.74x = 92,905.89 - Step 5: Solve for x
x = 92,905.89/298.74 - Step 6: Final answer
x = 310.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.