Finding the Fourth Proportional to 256,063.13, 384,171.57 and 121,229.99
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Solution
The fourth proportional to 256,063.13, 384,171.57 and 121,229.99 is: 181,881.38
Step by Step Solution
- Step 1: Write the proportion equation
256,063.13 : 384,171.57 = 121,229.99 : x - Step 2: Convert to fraction form
256,063.13/384,171.57 = 121,229.99/x - Step 3: Cross multiply
256,063.13x = 384,171.57 × 121,229.99 - Step 4: Simplify right side
256,063.13x = 46,573,113,668.53 - Step 5: Solve for x
x = 46,573,113,668.53/256,063.13 - Step 6: Final answer
x = 181,881.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.