Finding the Fourth Proportional to 209,203.91, 288,840.43 and 160,719.49
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Solution
The fourth proportional to 209,203.91, 288,840.43 and 160,719.49 is: 221,899.71
Step by Step Solution
- Step 1: Write the proportion equation
209,203.91 : 288,840.43 = 160,719.49 : x - Step 2: Convert to fraction form
209,203.91/288,840.43 = 160,719.49/x - Step 3: Cross multiply
209,203.91x = 288,840.43 × 160,719.49 - Step 4: Simplify right side
209,203.91x = 46,422,286,600.98 - Step 5: Solve for x
x = 46,422,286,600.98/209,203.91 - Step 6: Final answer
x = 221,899.71
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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.