Finding the Fourth Proportional to 209,239.20, 288,752.95 and 113,747.95
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Solution
The fourth proportional to 209,239.20, 288,752.95 and 113,747.95 is: 156,973.72
Step by Step Solution
- Step 1: Write the proportion equation
209,239.20 : 288,752.95 = 113,747.95 : x - Step 2: Convert to fraction form
209,239.20/288,752.95 = 113,747.95/x - Step 3: Cross multiply
209,239.20x = 288,752.95 × 113,747.95 - Step 4: Simplify right side
209,239.20x = 32,845,054,997.84 - Step 5: Solve for x
x = 32,845,054,997.84/209,239.20 - Step 6: Final answer
x = 156,973.72
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1.5x scale
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.