Finding the Fourth Proportional to 418.81, 628.36 and 202.23
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Solution
The fourth proportional to 418.81, 628.36 and 202.23 is: 303.42
Step by Step Solution
- Step 1: Write the proportion equation
418.81 : 628.36 = 202.23 : x - Step 2: Convert to fraction form
418.81/628.36 = 202.23/x - Step 3: Cross multiply
418.81x = 628.36 × 202.23 - Step 4: Simplify right side
418.81x = 127,073.24 - Step 5: Solve for x
x = 127,073.24/418.81 - Step 6: Final answer
x = 303.42
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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.