Finding the Fourth Proportional to 237,861.28, 328,239.68 and 130,428.80
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Solution
The fourth proportional to 237,861.28, 328,239.68 and 130,428.80 is: 179,986.87
Step by Step Solution
- Step 1: Write the proportion equation
237,861.28 : 328,239.68 = 130,428.80 : x - Step 2: Convert to fraction form
237,861.28/328,239.68 = 130,428.80/x - Step 3: Cross multiply
237,861.28x = 328,239.68 × 130,428.80 - Step 4: Simplify right side
237,861.28x = 42,811,907,574.78 - Step 5: Solve for x
x = 42,811,907,574.78/237,861.28 - Step 6: Final answer
x = 179,986.87
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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.