Finding the Fourth Proportional to 381,717.67, 572,489.02 and 171,415.75
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Solution
The fourth proportional to 381,717.67, 572,489.02 and 171,415.75 is: 257,084.34
Step by Step Solution
- Step 1: Write the proportion equation
381,717.67 : 572,489.02 = 171,415.75 : x - Step 2: Convert to fraction form
381,717.67/572,489.02 = 171,415.75/x - Step 3: Cross multiply
381,717.67x = 572,489.02 × 171,415.75 - Step 4: Simplify right side
381,717.67x = 98,133,634,730.07 - Step 5: Solve for x
x = 98,133,634,730.07/381,717.67 - Step 6: Final answer
x = 257,084.34
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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.