Finding the Fourth Proportional to 209,783.01, 289,500.94 and 119,138.97
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Solution
The fourth proportional to 209,783.01, 289,500.94 and 119,138.97 is: 164,411.99
Step by Step Solution
- Step 1: Write the proportion equation
209,783.01 : 289,500.94 = 119,138.97 : x - Step 2: Convert to fraction form
209,783.01/289,500.94 = 119,138.97/x - Step 3: Cross multiply
209,783.01x = 289,500.94 × 119,138.97 - Step 4: Simplify right side
209,783.01x = 34,490,843,746.82 - Step 5: Solve for x
x = 34,490,843,746.82/209,783.01 - Step 6: Final answer
x = 164,411.99
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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.