Finding the Fourth Proportional to 186,721.74, 279,900.36 and 74,368.26
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Solution
The fourth proportional to 186,721.74, 279,900.36 and 74,368.26 is: 111,479.80
Step by Step Solution
- Step 1: Write the proportion equation
186,721.74 : 279,900.36 = 74,368.26 : x - Step 2: Convert to fraction form
186,721.74/279,900.36 = 74,368.26/x - Step 3: Cross multiply
186,721.74x = 279,900.36 × 74,368.26 - Step 4: Simplify right side
186,721.74x = 20,815,702,746.57 - Step 5: Solve for x
x = 20,815,702,746.57/186,721.74 - Step 6: Final answer
x = 111,479.80
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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.