Finding the Fourth Proportional to 235,844.60, 325,465.93 and 128,415.07
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Solution
The fourth proportional to 235,844.60, 325,465.93 and 128,415.07 is: 177,213.01
Step by Step Solution
- Step 1: Write the proportion equation
235,844.60 : 325,465.93 = 128,415.07 : x - Step 2: Convert to fraction form
235,844.60/325,465.93 = 128,415.07/x - Step 3: Cross multiply
235,844.60x = 325,465.93 × 128,415.07 - Step 4: Simplify right side
235,844.60x = 41,794,730,750.92 - Step 5: Solve for x
x = 41,794,730,750.92/235,844.60 - Step 6: Final answer
x = 177,213.01
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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.