Finding the Fourth Proportional to 280,039.58, 386,464.84 and 159,201.26
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Solution
The fourth proportional to 280,039.58, 386,464.84 and 159,201.26 is: 219,703.55
Step by Step Solution
- Step 1: Write the proportion equation
280,039.58 : 386,464.84 = 159,201.26 : x - Step 2: Convert to fraction form
280,039.58/386,464.84 = 159,201.26/x - Step 3: Cross multiply
280,039.58x = 386,464.84 × 159,201.26 - Step 4: Simplify right side
280,039.58x = 61,525,689,473.70 - Step 5: Solve for x
x = 61,525,689,473.70/280,039.58 - Step 6: Final answer
x = 219,703.55
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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.