Finding the Fourth Proportional to 643,924.54, 965,668.11 and 223,102.18
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Solution
The fourth proportional to 643,924.54, 965,668.11 and 223,102.18 is: 334,577.50
Step by Step Solution
- Step 1: Write the proportion equation
643,924.54 : 965,668.11 = 223,102.18 : x - Step 2: Convert to fraction form
643,924.54/965,668.11 = 223,102.18/x - Step 3: Cross multiply
643,924.54x = 965,668.11 × 223,102.18 - Step 4: Simplify right side
643,924.54x = 215,442,660,497.48 - Step 5: Solve for x
x = 215,442,660,497.48/643,924.54 - Step 6: Final answer
x = 334,577.50
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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.