Finding the Fourth Proportional to 411.99, 618 and 168.35
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Solution
The fourth proportional to 411.99, 618 and 168.35 is: 252.53
Step by Step Solution
- Step 1: Write the proportion equation
411.99 : 618 = 168.35 : x - Step 2: Convert to fraction form
411.99/618 = 168.35/x - Step 3: Cross multiply
411.99x = 618 × 168.35 - Step 4: Simplify right side
411.99x = 104,040.30 - Step 5: Solve for x
x = 104,040.30/411.99 - Step 6: Final answer
x = 252.53
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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.