Finding the Fourth Proportional to 225,849.23, 311,657.10 and 129,058.08
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Solution
The fourth proportional to 225,849.23, 311,657.10 and 129,058.08 is: 178,091.68
Step by Step Solution
- Step 1: Write the proportion equation
225,849.23 : 311,657.10 = 129,058.08 : x - Step 2: Convert to fraction form
225,849.23/311,657.10 = 129,058.08/x - Step 3: Cross multiply
225,849.23x = 311,657.10 × 129,058.08 - Step 4: Simplify right side
225,849.23x = 40,221,866,944.37 - Step 5: Solve for x
x = 40,221,866,944.37/225,849.23 - Step 6: Final answer
x = 178,091.68
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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.