Finding the Fourth Proportional to 192,409.80, 288,614.70 and 157,417.80
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Solution
The fourth proportional to 192,409.80, 288,614.70 and 157,417.80 is: 236,126.70
Step by Step Solution
- Step 1: Write the proportion equation
192,409.80 : 288,614.70 = 157,417.80 : x - Step 2: Convert to fraction form
192,409.80/288,614.70 = 157,417.80/x - Step 3: Cross multiply
192,409.80x = 288,614.70 × 157,417.80 - Step 4: Simplify right side
192,409.80x = 45,433,091,121.66 - Step 5: Solve for x
x = 45,433,091,121.66/192,409.80 - Step 6: Final answer
x = 236,126.70
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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.