Finding the Fourth Proportional to 643,474.47, 965,207.36 and 163,698.15
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Solution
The fourth proportional to 643,474.47, 965,207.36 and 163,698.15 is: 245,546.12
Step by Step Solution
- Step 1: Write the proportion equation
643,474.47 : 965,207.36 = 163,698.15 : x - Step 2: Convert to fraction form
643,474.47/965,207.36 = 163,698.15/x - Step 3: Cross multiply
643,474.47x = 965,207.36 × 163,698.15 - Step 4: Simplify right side
643,474.47x = 158,002,659,198.38 - Step 5: Solve for x
x = 158,002,659,198.38/643,474.47 - Step 6: Final answer
x = 245,546.12
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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.