Finding the Fourth Proportional to 186,519.60, 279,823.05 and 74,206.17
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Solution
The fourth proportional to 186,519.60, 279,823.05 and 74,206.17 is: 111,326.62
Step by Step Solution
- Step 1: Write the proportion equation
186,519.60 : 279,823.05 = 74,206.17 : x - Step 2: Convert to fraction form
186,519.60/279,823.05 = 74,206.17/x - Step 3: Cross multiply
186,519.60x = 279,823.05 × 74,206.17 - Step 4: Simplify right side
186,519.60x = 20,764,596,818.22 - Step 5: Solve for x
x = 20,764,596,818.22/186,519.60 - Step 6: Final answer
x = 111,326.62
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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.