Finding the Fourth Proportional to 418.53, 628.08 and 202.14
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Solution
The fourth proportional to 418.53, 628.08 and 202.14 is: 303.35
Step by Step Solution
- Step 1: Write the proportion equation
418.53 : 628.08 = 202.14 : x - Step 2: Convert to fraction form
418.53/628.08 = 202.14/x - Step 3: Cross multiply
418.53x = 628.08 × 202.14 - Step 4: Simplify right side
418.53x = 126,960.09 - Step 5: Solve for x
x = 126,960.09/418.53 - Step 6: Final answer
x = 303.35
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.