Finding the Fourth Proportional to 251,668.30, 347,302.02 and 138,491.05
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Solution
The fourth proportional to 251,668.30, 347,302.02 and 138,491.05 is: 191,117.52
Step by Step Solution
- Step 1: Write the proportion equation
251,668.30 : 347,302.02 = 138,491.05 : x - Step 2: Convert to fraction form
251,668.30/347,302.02 = 138,491.05/x - Step 3: Cross multiply
251,668.30x = 347,302.02 × 138,491.05 - Step 4: Simplify right side
251,668.30x = 48,098,221,416.92 - Step 5: Solve for x
x = 48,098,221,416.92/251,668.30 - Step 6: Final answer
x = 191,117.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.