Finding the Fourth Proportional to 326,139.12, 449,880.84 and 205,088.40
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Solution
The fourth proportional to 326,139.12, 449,880.84 and 205,088.40 is: 282,901.79
Step by Step Solution
- Step 1: Write the proportion equation
326,139.12 : 449,880.84 = 205,088.40 : x - Step 2: Convert to fraction form
326,139.12/449,880.84 = 205,088.40/x - Step 3: Cross multiply
326,139.12x = 449,880.84 × 205,088.40 - Step 4: Simplify right side
326,139.12x = 92,265,341,666.26 - Step 5: Solve for x
x = 92,265,341,666.26/326,139.12 - Step 6: Final answer
x = 282,901.79
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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.