Finding the Fourth Proportional to 418.23, 577.17 and 231.75
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Solution
The fourth proportional to 418.23, 577.17 and 231.75 is: 319.82
Step by Step Solution
- Step 1: Write the proportion equation
418.23 : 577.17 = 231.75 : x - Step 2: Convert to fraction form
418.23/577.17 = 231.75/x - Step 3: Cross multiply
418.23x = 577.17 × 231.75 - Step 4: Simplify right side
418.23x = 133,757.99 - Step 5: Solve for x
x = 133,757.99/418.23 - Step 6: Final answer
x = 319.82
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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.