Finding the Fourth Proportional to 236,113.08, 325,826.56 and 128,680.81
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Solution
The fourth proportional to 236,113.08, 325,826.56 and 128,680.81 is: 177,574.35
Step by Step Solution
- Step 1: Write the proportion equation
236,113.08 : 325,826.56 = 128,680.81 : x - Step 2: Convert to fraction form
236,113.08/325,826.56 = 128,680.81/x - Step 3: Cross multiply
236,113.08x = 325,826.56 × 128,680.81 - Step 4: Simplify right side
236,113.08x = 41,927,625,660.31 - Step 5: Solve for x
x = 41,927,625,660.31/236,113.08 - Step 6: Final answer
x = 177,574.35
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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.