Finding the Fourth Proportional to 399,640.50, 599,756.67 and 189,279.09
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Solution
The fourth proportional to 399,640.50, 599,756.67 and 189,279.09 is: 284,058.79
Step by Step Solution
- Step 1: Write the proportion equation
399,640.50 : 599,756.67 = 189,279.09 : x - Step 2: Convert to fraction form
399,640.50/599,756.67 = 189,279.09/x - Step 3: Cross multiply
399,640.50x = 599,756.67 × 189,279.09 - Step 4: Simplify right side
399,640.50x = 113,521,396,719.03 - Step 5: Solve for x
x = 113,521,396,719.03/399,640.50 - Step 6: Final answer
x = 284,058.79
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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.