Finding the Fourth Proportional to 207,511.39, 286,366.26 and 121,454.77
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Solution
The fourth proportional to 207,511.39, 286,366.26 and 121,454.77 is: 167,607.90
Step by Step Solution
- Step 1: Write the proportion equation
207,511.39 : 286,366.26 = 121,454.77 : x - Step 2: Convert to fraction form
207,511.39/286,366.26 = 121,454.77/x - Step 3: Cross multiply
207,511.39x = 286,366.26 × 121,454.77 - Step 4: Simplify right side
207,511.39x = 34,780,548,244.06 - Step 5: Solve for x
x = 34,780,548,244.06/207,511.39 - Step 6: Final answer
x = 167,607.90
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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.