Finding the Fourth Proportional to 218,239.11, 301,074.57 and 133,305.75
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Solution
The fourth proportional to 218,239.11, 301,074.57 and 133,305.75 is: 183,903.66
Step by Step Solution
- Step 1: Write the proportion equation
218,239.11 : 301,074.57 = 133,305.75 : x - Step 2: Convert to fraction form
218,239.11/301,074.57 = 133,305.75/x - Step 3: Cross multiply
218,239.11x = 301,074.57 × 133,305.75 - Step 4: Simplify right side
218,239.11x = 40,134,971,359.78 - Step 5: Solve for x
x = 40,134,971,359.78/218,239.11 - Step 6: Final answer
x = 183,903.66
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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.