Finding the Fourth Proportional to 215,531.10, 297,442.11 and 120,037.80
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Solution
The fourth proportional to 215,531.10, 297,442.11 and 120,037.80 is: 165,657.28
Step by Step Solution
- Step 1: Write the proportion equation
215,531.10 : 297,442.11 = 120,037.80 : x - Step 2: Convert to fraction form
215,531.10/297,442.11 = 120,037.80/x - Step 3: Cross multiply
215,531.10x = 297,442.11 × 120,037.80 - Step 4: Simplify right side
215,531.10x = 35,704,296,511.76 - Step 5: Solve for x
x = 35,704,296,511.76/215,531.10 - Step 6: Final answer
x = 165,657.28
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1.5x scale
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.