Finding the Fourth Proportional to 235,670.58, 325,220.09 and 128,240.91
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Solution
The fourth proportional to 235,670.58, 325,220.09 and 128,240.91 is: 176,969.56
Step by Step Solution
- Step 1: Write the proportion equation
235,670.58 : 325,220.09 = 128,240.91 : x - Step 2: Convert to fraction form
235,670.58/325,220.09 = 128,240.91/x - Step 3: Cross multiply
235,670.58x = 325,220.09 × 128,240.91 - Step 4: Simplify right side
235,670.58x = 41,706,519,650.68 - Step 5: Solve for x
x = 41,706,519,650.68/235,670.58 - Step 6: Final answer
x = 176,969.56
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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.