Finding the Fourth Proportional to 310,684.49, 466,021.97 and 139,785.49
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Solution
The fourth proportional to 310,684.49, 466,021.97 and 139,785.49 is: 209,676.09
Step by Step Solution
- Step 1: Write the proportion equation
310,684.49 : 466,021.97 = 139,785.49 : x - Step 2: Convert to fraction form
310,684.49/466,021.97 = 139,785.49/x - Step 3: Cross multiply
310,684.49x = 466,021.97 × 139,785.49 - Step 4: Simplify right side
310,684.49x = 65,143,109,427.22 - Step 5: Solve for x
x = 65,143,109,427.22/310,684.49 - Step 6: Final answer
x = 209,676.09
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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.