Finding the Fourth Proportional to 259,279.05, 388,930.94 and 126,000.53
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Solution
The fourth proportional to 259,279.05, 388,930.94 and 126,000.53 is: 189,006.79
Step by Step Solution
- Step 1: Write the proportion equation
259,279.05 : 388,930.94 = 126,000.53 : x - Step 2: Convert to fraction form
259,279.05/388,930.94 = 126,000.53/x - Step 3: Cross multiply
259,279.05x = 388,930.94 × 126,000.53 - Step 4: Simplify right side
259,279.05x = 49,005,501,998.74 - Step 5: Solve for x
x = 49,005,501,998.74/259,279.05 - Step 6: Final answer
x = 189,006.79
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1.5x scale
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.