Finding the Fourth Proportional to 211,755.36, 317,641.70 and 53,987.92
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Solution
The fourth proportional to 211,755.36, 317,641.70 and 53,987.92 is: 80,984.08
Step by Step Solution
- Step 1: Write the proportion equation
211,755.36 : 317,641.70 = 53,987.92 : x - Step 2: Convert to fraction form
211,755.36/317,641.70 = 53,987.92/x - Step 3: Cross multiply
211,755.36x = 317,641.70 × 53,987.92 - Step 4: Simplify right side
211,755.36x = 17,148,814,029.13 - Step 5: Solve for x
x = 17,148,814,029.13/211,755.36 - Step 6: Final answer
x = 80,984.08
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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.