Finding the Fourth Proportional to 547,724.13, 821,615.81 and 168,905.66
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Solution
The fourth proportional to 547,724.13, 821,615.81 and 168,905.66 is: 253,367.62
Step by Step Solution
- Step 1: Write the proportion equation
547,724.13 : 821,615.81 = 168,905.66 : x - Step 2: Convert to fraction form
547,724.13/821,615.81 = 168,905.66/x - Step 3: Cross multiply
547,724.13x = 821,615.81 × 168,905.66 - Step 4: Simplify right side
547,724.13x = 138,775,555,701.88 - Step 5: Solve for x
x = 138,775,555,701.88/547,724.13 - Step 6: Final answer
x = 253,367.62
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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.