Finding the Fourth Proportional to 235,778.86, 325,374.86 and 128,349.70
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Solution
The fourth proportional to 235,778.86, 325,374.86 and 128,349.70 is: 177,122.60
Step by Step Solution
- Step 1: Write the proportion equation
235,778.86 : 325,374.86 = 128,349.70 : x - Step 2: Convert to fraction form
235,778.86/325,374.86 = 128,349.70/x - Step 3: Cross multiply
235,778.86x = 325,374.86 × 128,349.70 - Step 4: Simplify right side
235,778.86x = 41,761,765,668.54 - Step 5: Solve for x
x = 41,761,765,668.54/235,778.86 - Step 6: Final answer
x = 177,122.60
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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.