Finding the Fourth Proportional to 396,419.82, 594,649.71 and 112,130.70
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Solution
The fourth proportional to 396,419.82, 594,649.71 and 112,130.70 is: 168,201.70
Step by Step Solution
- Step 1: Write the proportion equation
396,419.82 : 594,649.71 = 112,130.70 : x - Step 2: Convert to fraction form
396,419.82/594,649.71 = 112,130.70/x - Step 3: Cross multiply
396,419.82x = 594,649.71 × 112,130.70 - Step 4: Simplify right side
396,419.82x = 66,678,488,237.10 - Step 5: Solve for x
x = 66,678,488,237.10/396,419.82 - Step 6: Final answer
x = 168,201.70
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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.