Finding the Fourth Proportional to 211,348.81, 317,160.60 and 91,522.75
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Solution
The fourth proportional to 211,348.81, 317,160.60 and 91,522.75 is: 137,343.62
Step by Step Solution
- Step 1: Write the proportion equation
211,348.81 : 317,160.60 = 91,522.75 : x - Step 2: Convert to fraction form
211,348.81/317,160.60 = 91,522.75/x - Step 3: Cross multiply
211,348.81x = 317,160.60 × 91,522.75 - Step 4: Simplify right side
211,348.81x = 29,027,410,303.65 - Step 5: Solve for x
x = 29,027,410,303.65/211,348.81 - Step 6: Final answer
x = 137,343.62
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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.