Finding the Fourth Proportional to 261,998.74, 393,048.33 and 84,458.08
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Solution
The fourth proportional to 261,998.74, 393,048.33 and 84,458.08 is: 126,703.31
Step by Step Solution
- Step 1: Write the proportion equation
261,998.74 : 393,048.33 = 84,458.08 : x - Step 2: Convert to fraction form
261,998.74/393,048.33 = 84,458.08/x - Step 3: Cross multiply
261,998.74x = 393,048.33 × 84,458.08 - Step 4: Simplify right side
261,998.74x = 33,196,107,299.01 - Step 5: Solve for x
x = 33,196,107,299.01/261,998.74 - Step 6: Final answer
x = 126,703.31
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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.