Finding the Fourth Proportional to 217,402.80, 326,136.60 and 77,149.68
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Solution
The fourth proportional to 217,402.80, 326,136.60 and 77,149.68 is: 115,736.02
Step by Step Solution
- Step 1: Write the proportion equation
217,402.80 : 326,136.60 = 77,149.68 : x - Step 2: Convert to fraction form
217,402.80/326,136.60 = 77,149.68/x - Step 3: Cross multiply
217,402.80x = 326,136.60 × 77,149.68 - Step 4: Simplify right side
217,402.80x = 25,161,334,326.29 - Step 5: Solve for x
x = 25,161,334,326.29/217,402.80 - Step 6: Final answer
x = 115,736.02
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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.