Finding the Fourth Proportional to 311,327.70, 466,991.55 and 153,863.70
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Solution
The fourth proportional to 311,327.70, 466,991.55 and 153,863.70 is: 230,795.55
Step by Step Solution
- Step 1: Write the proportion equation
311,327.70 : 466,991.55 = 153,863.70 : x - Step 2: Convert to fraction form
311,327.70/466,991.55 = 153,863.70/x - Step 3: Cross multiply
311,327.70x = 466,991.55 × 153,863.70 - Step 4: Simplify right side
311,327.70x = 71,853,047,751.74 - Step 5: Solve for x
x = 71,853,047,751.74/311,327.70 - Step 6: Final answer
x = 230,795.55
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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.