Finding the Fourth Proportional to 419.49, 578.93 and 232.99
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Solution
The fourth proportional to 419.49, 578.93 and 232.99 is: 321.54
Step by Step Solution
- Step 1: Write the proportion equation
419.49 : 578.93 = 232.99 : x - Step 2: Convert to fraction form
419.49/578.93 = 232.99/x - Step 3: Cross multiply
419.49x = 578.93 × 232.99 - Step 4: Simplify right side
419.49x = 134,882.29 - Step 5: Solve for x
x = 134,882.29/419.49 - Step 6: Final answer
x = 321.54
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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.