Finding the Fourth Proportional to 192,420.18, 288,706.87 and 74,059.74
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Solution
The fourth proportional to 192,420.18, 288,706.87 and 74,059.74 is: 111,119.09
Step by Step Solution
- Step 1: Write the proportion equation
192,420.18 : 288,706.87 = 74,059.74 : x - Step 2: Convert to fraction form
192,420.18/288,706.87 = 74,059.74/x - Step 3: Cross multiply
192,420.18x = 288,706.87 × 74,059.74 - Step 4: Simplify right side
192,420.18x = 21,381,555,728.41 - Step 5: Solve for x
x = 21,381,555,728.41/192,420.18 - Step 6: Final answer
x = 111,119.09
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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.