Finding the Fourth Proportional to 317,771.68, 476,657.10 and 81,114.40
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Solution
The fourth proportional to 317,771.68, 476,657.10 and 81,114.40 is: 121,671.49
Step by Step Solution
- Step 1: Write the proportion equation
317,771.68 : 476,657.10 = 81,114.40 : x - Step 2: Convert to fraction form
317,771.68/476,657.10 = 81,114.40/x - Step 3: Cross multiply
317,771.68x = 476,657.10 × 81,114.40 - Step 4: Simplify right side
317,771.68x = 38,663,754,672.24 - Step 5: Solve for x
x = 38,663,754,672.24/317,771.68 - Step 6: Final answer
x = 121,671.49
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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.