Finding the Fourth Proportional to 245,103.75, 367,655.63 and 78,891.75
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Solution
The fourth proportional to 245,103.75, 367,655.63 and 78,891.75 is: 118,337.63
Step by Step Solution
- Step 1: Write the proportion equation
245,103.75 : 367,655.63 = 78,891.75 : x - Step 2: Convert to fraction form
245,103.75/367,655.63 = 78,891.75/x - Step 3: Cross multiply
245,103.75x = 367,655.63 × 78,891.75 - Step 4: Simplify right side
245,103.75x = 29,004,996,048.05 - Step 5: Solve for x
x = 29,004,996,048.05/245,103.75 - Step 6: Final answer
x = 118,337.63
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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.