Finding the Fourth Proportional to 681.17, 1,020.99 and 269.99
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Solution
The fourth proportional to 681.17, 1,020.99 and 269.99 is: 404.68
Step by Step Solution
- Step 1: Write the proportion equation
681.17 : 1,020.99 = 269.99 : x - Step 2: Convert to fraction form
681.17/1,020.99 = 269.99/x - Step 3: Cross multiply
681.17x = 1,020.99 × 269.99 - Step 4: Simplify right side
681.17x = 275,655.74 - Step 5: Solve for x
x = 275,655.74/681.17 - Step 6: Final answer
x = 404.68
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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.