Finding the Fourth Proportional to 299,211.70, 412,911.56 and 163,245.74
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Solution
The fourth proportional to 299,211.70, 412,911.56 and 163,245.74 is: 225,278.80
Step by Step Solution
- Step 1: Write the proportion equation
299,211.70 : 412,911.56 = 163,245.74 : x - Step 2: Convert to fraction form
299,211.70/412,911.56 = 163,245.74/x - Step 3: Cross multiply
299,211.70x = 412,911.56 × 163,245.74 - Step 4: Simplify right side
299,211.70x = 67,406,052,350.53 - Step 5: Solve for x
x = 67,406,052,350.53/299,211.70 - Step 6: Final answer
x = 225,278.80
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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.