Finding the Fourth Proportional to 381,257.24, 571,486.86 and 128,450.36
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Solution
The fourth proportional to 381,257.24, 571,486.86 and 128,450.36 is: 192,541.12
Step by Step Solution
- Step 1: Write the proportion equation
381,257.24 : 571,486.86 = 128,450.36 : x - Step 2: Convert to fraction form
381,257.24/571,486.86 = 128,450.36/x - Step 3: Cross multiply
381,257.24x = 571,486.86 × 128,450.36 - Step 4: Simplify right side
381,257.24x = 73,407,694,330.99 - Step 5: Solve for x
x = 73,407,694,330.99/381,257.24 - Step 6: Final answer
x = 192,541.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.