Finding the Fourth Proportional to 286,979.22, 396,047.07 and 159,652.08
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Solution
The fourth proportional to 286,979.22, 396,047.07 and 159,652.08 is: 220,328.63
Step by Step Solution
- Step 1: Write the proportion equation
286,979.22 : 396,047.07 = 159,652.08 : x - Step 2: Convert to fraction form
286,979.22/396,047.07 = 159,652.08/x - Step 3: Cross multiply
286,979.22x = 396,047.07 × 159,652.08 - Step 4: Simplify right side
286,979.22x = 63,229,738,503.41 - Step 5: Solve for x
x = 63,229,738,503.41/286,979.22 - Step 6: Final answer
x = 220,328.63
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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.