Finding the Fourth Proportional to 170,668.92, 235,587.60 and 128,349.60
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Solution
The fourth proportional to 170,668.92, 235,587.60 and 128,349.60 is: 177,170.95
Step by Step Solution
- Step 1: Write the proportion equation
170,668.92 : 235,587.60 = 128,349.60 : x - Step 2: Convert to fraction form
170,668.92/235,587.60 = 128,349.60/x - Step 3: Cross multiply
170,668.92x = 235,587.60 × 128,349.60 - Step 4: Simplify right side
170,668.92x = 30,237,574,224.96 - Step 5: Solve for x
x = 30,237,574,224.96/170,668.92 - Step 6: Final answer
x = 177,170.95
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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.