Finding the Fourth Proportional to 225,093.87, 310,639.49 and 129,631.32
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Solution
The fourth proportional to 225,093.87, 310,639.49 and 129,631.32 is: 178,896.95
Step by Step Solution
- Step 1: Write the proportion equation
225,093.87 : 310,639.49 = 129,631.32 : x - Step 2: Convert to fraction form
225,093.87/310,639.49 = 129,631.32/x - Step 3: Cross multiply
225,093.87x = 310,639.49 × 129,631.32 - Step 4: Simplify right side
225,093.87x = 40,268,606,970.79 - Step 5: Solve for x
x = 40,268,606,970.79/225,093.87 - Step 6: Final answer
x = 178,896.95
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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.