Finding the Fourth Proportional to 288,914.45, 433,367.82 and 99,378.09
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Solution
The fourth proportional to 288,914.45, 433,367.82 and 99,378.09 is: 149,065.81
Step by Step Solution
- Step 1: Write the proportion equation
288,914.45 : 433,367.82 = 99,378.09 : x - Step 2: Convert to fraction form
288,914.45/433,367.82 = 99,378.09/x - Step 3: Cross multiply
288,914.45x = 433,367.82 × 99,378.09 - Step 4: Simplify right side
288,914.45x = 43,067,266,219.06 - Step 5: Solve for x
x = 43,067,266,219.06/288,914.45 - Step 6: Final answer
x = 149,065.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.