Finding the Fourth Proportional to 199,441.20, 298,905.84 and 87,090.96
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Solution
The fourth proportional to 199,441.20, 298,905.84 and 87,090.96 is: 130,524.67
Step by Step Solution
- Step 1: Write the proportion equation
199,441.20 : 298,905.84 = 87,090.96 : x - Step 2: Convert to fraction form
199,441.20/298,905.84 = 87,090.96/x - Step 3: Cross multiply
199,441.20x = 298,905.84 × 87,090.96 - Step 4: Simplify right side
199,441.20x = 26,031,996,555.21 - Step 5: Solve for x
x = 26,031,996,555.21/199,441.20 - Step 6: Final answer
x = 130,524.67
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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.