Finding the Fourth Proportional to 458,845.82, 688,268.73 and 178,428.68
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Solution
The fourth proportional to 458,845.82, 688,268.73 and 178,428.68 is: 267,643.02
Step by Step Solution
- Step 1: Write the proportion equation
458,845.82 : 688,268.73 = 178,428.68 : x - Step 2: Convert to fraction form
458,845.82/688,268.73 = 178,428.68/x - Step 3: Cross multiply
458,845.82x = 688,268.73 × 178,428.68 - Step 4: Simplify right side
458,845.82x = 122,806,880,979.18 - Step 5: Solve for x
x = 122,806,880,979.18/458,845.82 - Step 6: Final answer
x = 267,643.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.