Finding the Fourth Proportional to 424.96, 637.76 and 181.68
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Solution
The fourth proportional to 424.96, 637.76 and 181.68 is: 272.66
Step by Step Solution
- Step 1: Write the proportion equation
424.96 : 637.76 = 181.68 : x - Step 2: Convert to fraction form
424.96/637.76 = 181.68/x - Step 3: Cross multiply
424.96x = 637.76 × 181.68 - Step 4: Simplify right side
424.96x = 115,868.24 - Step 5: Solve for x
x = 115,868.24/424.96 - Step 6: Final answer
x = 272.66
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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.