Finding the Fourth Proportional to 285,593.85, 394,135.20 and 158,266.71
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Solution
The fourth proportional to 285,593.85, 394,135.20 and 158,266.71 is: 218,416.75
Step by Step Solution
- Step 1: Write the proportion equation
285,593.85 : 394,135.20 = 158,266.71 : x - Step 2: Convert to fraction form
285,593.85/394,135.20 = 158,266.71/x - Step 3: Cross multiply
285,593.85x = 394,135.20 × 158,266.71 - Step 4: Simplify right side
285,593.85x = 62,378,481,399.19 - Step 5: Solve for x
x = 62,378,481,399.19/285,593.85 - Step 6: Final answer
x = 218,416.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.