Finding the Fourth Proportional to 209,295.36, 288,835.20 and 119,888.64
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Solution
The fourth proportional to 209,295.36, 288,835.20 and 119,888.64 is: 165,450.68
Step by Step Solution
- Step 1: Write the proportion equation
209,295.36 : 288,835.20 = 119,888.64 : x - Step 2: Convert to fraction form
209,295.36/288,835.20 = 119,888.64/x - Step 3: Cross multiply
209,295.36x = 288,835.20 × 119,888.64 - Step 4: Simplify right side
209,295.36x = 34,628,059,312.13 - Step 5: Solve for x
x = 34,628,059,312.13/209,295.36 - Step 6: Final answer
x = 165,450.68
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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.