Finding the Fourth Proportional to 190,861.57, 263,242.99 and 129,654.95
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Solution
The fourth proportional to 190,861.57, 263,242.99 and 129,654.95 is: 178,824.67
Step by Step Solution
- Step 1: Write the proportion equation
190,861.57 : 263,242.99 = 129,654.95 : x - Step 2: Convert to fraction form
190,861.57/263,242.99 = 129,654.95/x - Step 3: Cross multiply
190,861.57x = 263,242.99 × 129,654.95 - Step 4: Simplify right side
190,861.57x = 34,130,757,408.61 - Step 5: Solve for x
x = 34,130,757,408.61/190,861.57 - Step 6: Final answer
x = 178,824.67
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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.