Finding the Fourth Proportional to 386,863.71, 580,108.92 and 162,163.80
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Solution
The fourth proportional to 386,863.71, 580,108.92 and 162,163.80 is: 243,167.46
Step by Step Solution
- Step 1: Write the proportion equation
386,863.71 : 580,108.92 = 162,163.80 : x - Step 2: Convert to fraction form
386,863.71/580,108.92 = 162,163.80/x - Step 3: Cross multiply
386,863.71x = 580,108.92 × 162,163.80 - Step 4: Simplify right side
386,863.71x = 94,072,666,881.10 - Step 5: Solve for x
x = 94,072,666,881.10/386,863.71 - Step 6: Final answer
x = 243,167.46
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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.