Finding the Fourth Proportional to 256,091.98, 353,259.48 and 148,648.18
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Solution
The fourth proportional to 256,091.98, 353,259.48 and 148,648.18 is: 205,048.90
Step by Step Solution
- Step 1: Write the proportion equation
256,091.98 : 353,259.48 = 148,648.18 : x - Step 2: Convert to fraction form
256,091.98/353,259.48 = 148,648.18/x - Step 3: Cross multiply
256,091.98x = 353,259.48 × 148,648.18 - Step 4: Simplify right side
256,091.98x = 52,511,378,769.75 - Step 5: Solve for x
x = 52,511,378,769.75/256,091.98 - Step 6: Final answer
x = 205,048.90
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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.