Finding the Fourth Proportional to 215,305.96, 322,959.12 and 102,959.68
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Solution
The fourth proportional to 215,305.96, 322,959.12 and 102,959.68 is: 154,439.61
Step by Step Solution
- Step 1: Write the proportion equation
215,305.96 : 322,959.12 = 102,959.68 : x - Step 2: Convert to fraction form
215,305.96/322,959.12 = 102,959.68/x - Step 3: Cross multiply
215,305.96x = 322,959.12 × 102,959.68 - Step 4: Simplify right side
215,305.96x = 33,251,767,648.28 - Step 5: Solve for x
x = 33,251,767,648.28/215,305.96 - Step 6: Final answer
x = 154,439.61
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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.