Finding the Fourth Proportional to 236,531.80, 354,854.40 and 78,761.62
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Solution
The fourth proportional to 236,531.80, 354,854.40 and 78,761.62 is: 118,161.31
Step by Step Solution
- Step 1: Write the proportion equation
236,531.80 : 354,854.40 = 78,761.62 : x - Step 2: Convert to fraction form
236,531.80/354,854.40 = 78,761.62/x - Step 3: Cross multiply
236,531.80x = 354,854.40 × 78,761.62 - Step 4: Simplify right side
236,531.80x = 27,948,907,408.13 - Step 5: Solve for x
x = 27,948,907,408.13/236,531.80 - Step 6: Final answer
x = 118,161.31
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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.