Finding the Fourth Proportional to 317,381.43, 476,070.09 and 80,722.08
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Solution
The fourth proportional to 317,381.43, 476,070.09 and 80,722.08 is: 121,082.60
Step by Step Solution
- Step 1: Write the proportion equation
317,381.43 : 476,070.09 = 80,722.08 : x - Step 2: Convert to fraction form
317,381.43/476,070.09 = 80,722.08/x - Step 3: Cross multiply
317,381.43x = 476,070.09 × 80,722.08 - Step 4: Simplify right side
317,381.43x = 38,429,367,890.59 - Step 5: Solve for x
x = 38,429,367,890.59/317,381.43 - Step 6: Final answer
x = 121,082.60
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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.