Finding the Fourth Proportional to 286,979.88, 396,026.82 and 159,655.08
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Solution
The fourth proportional to 286,979.88, 396,026.82 and 159,655.08 is: 220,321.00
Step by Step Solution
- Step 1: Write the proportion equation
286,979.88 : 396,026.82 = 159,655.08 : x - Step 2: Convert to fraction form
286,979.88/396,026.82 = 159,655.08/x - Step 3: Cross multiply
286,979.88x = 396,026.82 × 159,655.08 - Step 4: Simplify right side
286,979.88x = 63,227,693,629.25 - Step 5: Solve for x
x = 63,227,693,629.25/286,979.88 - Step 6: Final answer
x = 220,321.00
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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.