Finding the Fourth Proportional to 186,278.30, 279,260.72 and 81,017.99
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Solution
The fourth proportional to 186,278.30, 279,260.72 and 81,017.99 is: 121,458.82
Step by Step Solution
- Step 1: Write the proportion equation
186,278.30 : 279,260.72 = 81,017.99 : x - Step 2: Convert to fraction form
186,278.30/279,260.72 = 81,017.99/x - Step 3: Cross multiply
186,278.30x = 279,260.72 × 81,017.99 - Step 4: Simplify right side
186,278.30x = 22,625,141,815.26 - Step 5: Solve for x
x = 22,625,141,815.26/186,278.30 - Step 6: Final answer
x = 121,458.82
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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.