Finding the Fourth Proportional to 256,917.80, 354,539.26 and 142,201.14
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Solution
The fourth proportional to 256,917.80, 354,539.26 and 142,201.14 is: 196,233.53
Step by Step Solution
- Step 1: Write the proportion equation
256,917.80 : 354,539.26 = 142,201.14 : x - Step 2: Convert to fraction form
256,917.80/354,539.26 = 142,201.14/x - Step 3: Cross multiply
256,917.80x = 354,539.26 × 142,201.14 - Step 4: Simplify right side
256,917.80x = 50,415,886,946.76 - Step 5: Solve for x
x = 50,415,886,946.76/256,917.80 - Step 6: Final answer
x = 196,233.53
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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.