Finding the Fourth Proportional to 317,135.16, 437,876.12 and 204,154.72
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Solution
The fourth proportional to 317,135.16, 437,876.12 and 204,154.72 is: 281,881.32
Step by Step Solution
- Step 1: Write the proportion equation
317,135.16 : 437,876.12 = 204,154.72 : x - Step 2: Convert to fraction form
317,135.16/437,876.12 = 204,154.72/x - Step 3: Cross multiply
317,135.16x = 437,876.12 × 204,154.72 - Step 4: Simplify right side
317,135.16x = 89,394,476,673.29 - Step 5: Solve for x
x = 89,394,476,673.29/317,135.16 - Step 6: Final answer
x = 281,881.32
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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.