Finding the Fourth Proportional to 385,489.80, 577,902.06 and 185,535.09
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Solution
The fourth proportional to 385,489.80, 577,902.06 and 185,535.09 is: 278,142.54
Step by Step Solution
- Step 1: Write the proportion equation
385,489.80 : 577,902.06 = 185,535.09 : x - Step 2: Convert to fraction form
385,489.80/577,902.06 = 185,535.09/x - Step 3: Cross multiply
385,489.80x = 577,902.06 × 185,535.09 - Step 4: Simplify right side
385,489.80x = 107,221,110,713.29 - Step 5: Solve for x
x = 107,221,110,713.29/385,489.80 - Step 6: Final answer
x = 278,142.54
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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.