Finding the Fourth Proportional to 317,827.28, 438,476.24 and 204,715.68
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Solution
The fourth proportional to 317,827.28, 438,476.24 and 204,715.68 is: 282,426.86
Step by Step Solution
- Step 1: Write the proportion equation
317,827.28 : 438,476.24 = 204,715.68 : x - Step 2: Convert to fraction form
317,827.28/438,476.24 = 204,715.68/x - Step 3: Cross multiply
317,827.28x = 438,476.24 × 204,715.68 - Step 4: Simplify right side
317,827.28x = 89,762,961,635.44 - Step 5: Solve for x
x = 89,762,961,635.44/317,827.28 - Step 6: Final answer
x = 282,426.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.