Finding the Fourth Proportional to 209,126.60, 288,589.63 and 117,239.79
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Solution
The fourth proportional to 209,126.60, 288,589.63 and 117,239.79 is: 161,788.06
Step by Step Solution
- Step 1: Write the proportion equation
209,126.60 : 288,589.63 = 117,239.79 : x - Step 2: Convert to fraction form
209,126.60/288,589.63 = 117,239.79/x - Step 3: Cross multiply
209,126.60x = 288,589.63 × 117,239.79 - Step 4: Simplify right side
209,126.60x = 33,834,187,031.18 - Step 5: Solve for x
x = 33,834,187,031.18/209,126.60 - Step 6: Final answer
x = 161,788.06
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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.