Finding the Fourth Proportional to 235,731.86, 325,309.94 and 128,302.66
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Solution
The fourth proportional to 235,731.86, 325,309.94 and 128,302.66 is: 177,057.66
Step by Step Solution
- Step 1: Write the proportion equation
235,731.86 : 325,309.94 = 128,302.66 : x - Step 2: Convert to fraction form
235,731.86/325,309.94 = 128,302.66/x - Step 3: Cross multiply
235,731.86x = 325,309.94 × 128,302.66 - Step 4: Simplify right side
235,731.86x = 41,738,130,626.44 - Step 5: Solve for x
x = 41,738,130,626.44/235,731.86 - Step 6: Final answer
x = 177,057.66
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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.