Finding the Fourth Proportional to 261,668.14, 392,502.62 and 74,679.64
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Solution
The fourth proportional to 261,668.14, 392,502.62 and 74,679.64 is: 112,019.58
Step by Step Solution
- Step 1: Write the proportion equation
261,668.14 : 392,502.62 = 74,679.64 : x - Step 2: Convert to fraction form
261,668.14/392,502.62 = 74,679.64/x - Step 3: Cross multiply
261,668.14x = 392,502.62 × 74,679.64 - Step 4: Simplify right side
261,668.14x = 29,311,953,987.26 - Step 5: Solve for x
x = 29,311,953,987.26/261,668.14 - Step 6: Final answer
x = 112,019.58
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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.