Finding the Fourth Proportional to 227,013.63, 313,278.79 and 131,575.68
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Solution
The fourth proportional to 227,013.63, 313,278.79 and 131,575.68 is: 181,574.43
Step by Step Solution
- Step 1: Write the proportion equation
227,013.63 : 313,278.79 = 131,575.68 : x - Step 2: Convert to fraction form
227,013.63/313,278.79 = 131,575.68/x - Step 3: Cross multiply
227,013.63x = 313,278.79 × 131,575.68 - Step 4: Simplify right side
227,013.63x = 41,219,869,741.59 - Step 5: Solve for x
x = 41,219,869,741.59/227,013.63 - Step 6: Final answer
x = 181,574.43
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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.