Finding the Fourth Proportional to 256,986.68, 354,636.09 and 142,258.68
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Solution
The fourth proportional to 256,986.68, 354,636.09 and 142,258.68 is: 196,313.92
Step by Step Solution
- Step 1: Write the proportion equation
256,986.68 : 354,636.09 = 142,258.68 : x - Step 2: Convert to fraction form
256,986.68/354,636.09 = 142,258.68/x - Step 3: Cross multiply
256,986.68x = 354,636.09 × 142,258.68 - Step 4: Simplify right side
256,986.68x = 50,450,062,043.76 - Step 5: Solve for x
x = 50,450,062,043.76/256,986.68 - Step 6: Final answer
x = 196,313.92
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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.