Finding the Fourth Proportional to 403.68, 603.84 and 322.68
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Solution
The fourth proportional to 403.68, 603.84 and 322.68 is: 482.68
Step by Step Solution
- Step 1: Write the proportion equation
403.68 : 603.84 = 322.68 : x - Step 2: Convert to fraction form
403.68/603.84 = 322.68/x - Step 3: Cross multiply
403.68x = 603.84 × 322.68 - Step 4: Simplify right side
403.68x = 194,847.09 - Step 5: Solve for x
x = 194,847.09/403.68 - Step 6: Final answer
x = 482.68
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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.