Finding the Fourth Proportional to 311,775.12, 467,663.67 and 87,134.08
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Solution
The fourth proportional to 311,775.12, 467,663.67 and 87,134.08 is: 130,701.39
Step by Step Solution
- Step 1: Write the proportion equation
311,775.12 : 467,663.67 = 87,134.08 : x - Step 2: Convert to fraction form
311,775.12/467,663.67 = 87,134.08/x - Step 3: Cross multiply
311,775.12x = 467,663.67 × 87,134.08 - Step 4: Simplify right side
311,775.12x = 40,749,440,860.88 - Step 5: Solve for x
x = 40,749,440,860.88/311,775.12 - Step 6: Final answer
x = 130,701.39
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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.