Finding the Fourth Proportional to 199,415.62, 275,295.14 and 153,991.63
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Solution
The fourth proportional to 199,415.62, 275,295.14 and 153,991.63 is: 212,586.89
Step by Step Solution
- Step 1: Write the proportion equation
199,415.62 : 275,295.14 = 153,991.63 : x - Step 2: Convert to fraction form
199,415.62/275,295.14 = 153,991.63/x - Step 3: Cross multiply
199,415.62x = 275,295.14 × 153,991.63 - Step 4: Simplify right side
199,415.62x = 42,393,147,339.68 - Step 5: Solve for x
x = 42,393,147,339.68/199,415.62 - Step 6: Final answer
x = 212,586.89
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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.