Finding the Fourth Proportional to 192,299.40, 288,449.10 and 171,409.80
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Solution
The fourth proportional to 192,299.40, 288,449.10 and 171,409.80 is: 257,114.70
Step by Step Solution
- Step 1: Write the proportion equation
192,299.40 : 288,449.10 = 171,409.80 : x - Step 2: Convert to fraction form
192,299.40/288,449.10 = 171,409.80/x - Step 3: Cross multiply
192,299.40x = 288,449.10 × 171,409.80 - Step 4: Simplify right side
192,299.40x = 49,443,002,541.18 - Step 5: Solve for x
x = 49,443,002,541.18/192,299.40 - Step 6: Final answer
x = 257,114.70
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1.5x scale
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.