Finding the Fourth Proportional to 209,588.51, 289,187.29 and 124,688.99
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Solution
The fourth proportional to 209,588.51, 289,187.29 and 124,688.99 is: 172,044.12
Step by Step Solution
- Step 1: Write the proportion equation
209,588.51 : 289,187.29 = 124,688.99 : x - Step 2: Convert to fraction form
209,588.51/289,187.29 = 124,688.99/x - Step 3: Cross multiply
209,588.51x = 289,187.29 × 124,688.99 - Step 4: Simplify right side
209,588.51x = 36,058,471,110.94 - Step 5: Solve for x
x = 36,058,471,110.94/209,588.51 - Step 6: Final answer
x = 172,044.12
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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.