Finding the Fourth Proportional to 231,390.36, 346,689.45 and 126,283.14
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Solution
The fourth proportional to 231,390.36, 346,689.45 and 126,283.14 is: 189,208.54
Step by Step Solution
- Step 1: Write the proportion equation
231,390.36 : 346,689.45 = 126,283.14 : x - Step 2: Convert to fraction form
231,390.36/346,689.45 = 126,283.14/x - Step 3: Cross multiply
231,390.36x = 346,689.45 × 126,283.14 - Step 4: Simplify right side
231,390.36x = 43,781,032,350.87 - Step 5: Solve for x
x = 43,781,032,350.87/231,390.36 - Step 6: Final answer
x = 189,208.54
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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.