Finding the Fourth Proportional to 209,312.24, 288,826.44 and 118,678.64
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Solution
The fourth proportional to 209,312.24, 288,826.44 and 118,678.64 is: 163,762.66
Step by Step Solution
- Step 1: Write the proportion equation
209,312.24 : 288,826.44 = 118,678.64 : x - Step 2: Convert to fraction form
209,312.24/288,826.44 = 118,678.64/x - Step 3: Cross multiply
209,312.24x = 288,826.44 × 118,678.64 - Step 4: Simplify right side
209,312.24x = 34,277,529,095.24 - Step 5: Solve for x
x = 34,277,529,095.24/209,312.24 - Step 6: Final answer
x = 163,762.66
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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.