Finding the Fourth Proportional to 190,889.40, 263,306.30 and 117,269.63
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Solution
The fourth proportional to 190,889.40, 263,306.30 and 117,269.63 is: 161,757.70
Step by Step Solution
- Step 1: Write the proportion equation
190,889.40 : 263,306.30 = 117,269.63 : x - Step 2: Convert to fraction form
190,889.40/263,306.30 = 117,269.63/x - Step 3: Cross multiply
190,889.40x = 263,306.30 × 117,269.63 - Step 4: Simplify right side
190,889.40x = 30,877,830,474.79 - Step 5: Solve for x
x = 30,877,830,474.79/190,889.40 - Step 6: Final answer
x = 161,757.70
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1.5x scale
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.