Finding the Fourth Proportional to 256,491.81, 353,956.77 and 141,777.99
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Solution
The fourth proportional to 256,491.81, 353,956.77 and 141,777.99 is: 195,652.56
Step by Step Solution
- Step 1: Write the proportion equation
256,491.81 : 353,956.77 = 141,777.99 : x - Step 2: Convert to fraction form
256,491.81/353,956.77 = 141,777.99/x - Step 3: Cross multiply
256,491.81x = 353,956.77 × 141,777.99 - Step 4: Simplify right side
256,491.81x = 50,183,279,397.49 - Step 5: Solve for x
x = 50,183,279,397.49/256,491.81 - Step 6: Final answer
x = 195,652.56
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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.