Finding the Fourth Proportional to 400,889.07, 553,207.23 and 219,601.80
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Solution
The fourth proportional to 400,889.07, 553,207.23 and 219,601.80 is: 303,039.70
Step by Step Solution
- Step 1: Write the proportion equation
400,889.07 : 553,207.23 = 219,601.80 : x - Step 2: Convert to fraction form
400,889.07/553,207.23 = 219,601.80/x - Step 3: Cross multiply
400,889.07x = 553,207.23 × 219,601.80 - Step 4: Simplify right side
400,889.07x = 121,485,303,481.01 - Step 5: Solve for x
x = 121,485,303,481.01/400,889.07 - Step 6: Final answer
x = 303,039.70
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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.