Finding the Fourth Proportional to 256,954.74, 354,587.67 and 143,777.58
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Solution
The fourth proportional to 256,954.74, 354,587.67 and 143,777.58 is: 198,407.54
Step by Step Solution
- Step 1: Write the proportion equation
256,954.74 : 354,587.67 = 143,777.58 : x - Step 2: Convert to fraction form
256,954.74/354,587.67 = 143,777.58/x - Step 3: Cross multiply
256,954.74x = 354,587.67 × 143,777.58 - Step 4: Simplify right side
256,954.74x = 50,981,757,090.44 - Step 5: Solve for x
x = 50,981,757,090.44/256,954.74 - Step 6: Final answer
x = 198,407.54
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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.