Finding the Fourth Proportional to 518.19, 715.08 and 296.99
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Solution
The fourth proportional to 518.19, 715.08 and 296.99 is: 409.83
Step by Step Solution
- Step 1: Write the proportion equation
518.19 : 715.08 = 296.99 : x - Step 2: Convert to fraction form
518.19/715.08 = 296.99/x - Step 3: Cross multiply
518.19x = 715.08 × 296.99 - Step 4: Simplify right side
518.19x = 212,371.83 - Step 5: Solve for x
x = 212,371.83/518.19 - Step 6: Final answer
x = 409.83
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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.