Finding the Fourth Proportional to 418.49, 577.49 and 231.99
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Solution
The fourth proportional to 418.49, 577.49 and 231.99 is: 320.13
Step by Step Solution
- Step 1: Write the proportion equation
418.49 : 577.49 = 231.99 : x - Step 2: Convert to fraction form
418.49/577.49 = 231.99/x - Step 3: Cross multiply
418.49x = 577.49 × 231.99 - Step 4: Simplify right side
418.49x = 133,971.91 - Step 5: Solve for x
x = 133,971.91/418.49 - Step 6: Final answer
x = 320.13
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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.