Finding the Fourth Proportional to 231,725.94, 319,808.67 and 141,135.06
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Solution
The fourth proportional to 231,725.94, 319,808.67 and 141,135.06 is: 194,782.75
Step by Step Solution
- Step 1: Write the proportion equation
231,725.94 : 319,808.67 = 141,135.06 : x - Step 2: Convert to fraction form
231,725.94/319,808.67 = 141,135.06/x - Step 3: Cross multiply
231,725.94x = 319,808.67 × 141,135.06 - Step 4: Simplify right side
231,725.94x = 45,136,215,828.97 - Step 5: Solve for x
x = 45,136,215,828.97/231,725.94 - Step 6: Final answer
x = 194,782.75
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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.