Finding the Fourth Proportional to 237,711.96, 328,039.74 and 128,814.12
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Solution
The fourth proportional to 237,711.96, 328,039.74 and 128,814.12 is: 177,761.99
Step by Step Solution
- Step 1: Write the proportion equation
237,711.96 : 328,039.74 = 128,814.12 : x - Step 2: Convert to fraction form
237,711.96/328,039.74 = 128,814.12/x - Step 3: Cross multiply
237,711.96x = 328,039.74 × 128,814.12 - Step 4: Simplify right side
237,711.96x = 42,256,150,433.13 - Step 5: Solve for x
x = 42,256,150,433.13/237,711.96 - Step 6: Final answer
x = 177,761.99
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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.