Finding the Fourth Proportional to 215,251.80, 322,877.70 and 189,007.80
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Solution
The fourth proportional to 215,251.80, 322,877.70 and 189,007.80 is: 283,511.70
Step by Step Solution
- Step 1: Write the proportion equation
215,251.80 : 322,877.70 = 189,007.80 : x - Step 2: Convert to fraction form
215,251.80/322,877.70 = 189,007.80/x - Step 3: Cross multiply
215,251.80x = 322,877.70 × 189,007.80 - Step 4: Simplify right side
215,251.80x = 61,026,403,746.06 - Step 5: Solve for x
x = 61,026,403,746.06/215,251.80 - Step 6: Final answer
x = 283,511.70
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1.5x scale
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.