Finding the Fourth Proportional to 236,473.20, 354,709.80 and 143,161.20
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Solution
The fourth proportional to 236,473.20, 354,709.80 and 143,161.20 is: 214,741.80
Step by Step Solution
- Step 1: Write the proportion equation
236,473.20 : 354,709.80 = 143,161.20 : x - Step 2: Convert to fraction form
236,473.20/354,709.80 = 143,161.20/x - Step 3: Cross multiply
236,473.20x = 354,709.80 × 143,161.20 - Step 4: Simplify right side
236,473.20x = 50,780,680,619.76 - Step 5: Solve for x
x = 50,780,680,619.76/236,473.20 - Step 6: Final answer
x = 214,741.80
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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.