Finding the Fourth Proportional to 288,021.96, 397,489.41 and 160,700.31
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Solution
The fourth proportional to 288,021.96, 397,489.41 and 160,700.31 is: 221,777.09
Step by Step Solution
- Step 1: Write the proportion equation
288,021.96 : 397,489.41 = 160,700.31 : x - Step 2: Convert to fraction form
288,021.96/397,489.41 = 160,700.31/x - Step 3: Cross multiply
288,021.96x = 397,489.41 × 160,700.31 - Step 4: Simplify right side
288,021.96x = 63,876,671,408.72 - Step 5: Solve for x
x = 63,876,671,408.72/288,021.96 - Step 6: Final answer
x = 221,777.09
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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.