Finding the Fourth Proportional to 256,370.99, 353,799.09 and 141,657.02
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Solution
The fourth proportional to 256,370.99, 353,799.09 and 141,657.02 is: 195,490.62
Step by Step Solution
- Step 1: Write the proportion equation
256,370.99 : 353,799.09 = 141,657.02 : x - Step 2: Convert to fraction form
256,370.99/353,799.09 = 141,657.02/x - Step 3: Cross multiply
256,370.99x = 353,799.09 × 141,657.02 - Step 4: Simplify right side
256,370.99x = 50,118,122,999.12 - Step 5: Solve for x
x = 50,118,122,999.12/256,370.99 - Step 6: Final answer
x = 195,490.62
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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.