Finding the Fourth Proportional to 385,461.96, 578,231.65 and 132,708.99
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Solution
The fourth proportional to 385,461.96, 578,231.65 and 132,708.99 is: 199,076.82
Step by Step Solution
- Step 1: Write the proportion equation
385,461.96 : 578,231.65 = 132,708.99 : x - Step 2: Convert to fraction form
385,461.96/578,231.65 = 132,708.99/x - Step 3: Cross multiply
385,461.96x = 578,231.65 × 132,708.99 - Step 4: Simplify right side
385,461.96x = 76,736,540,591.79 - Step 5: Solve for x
x = 76,736,540,591.79/385,461.96 - Step 6: Final answer
x = 199,076.82
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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.