Finding the Fourth Proportional to 280,165.11, 420,250.54 and 80,484.99
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Solution
The fourth proportional to 280,165.11, 420,250.54 and 80,484.99 is: 120,728.31
Step by Step Solution
- Step 1: Write the proportion equation
280,165.11 : 420,250.54 = 80,484.99 : x - Step 2: Convert to fraction form
280,165.11/420,250.54 = 80,484.99/x - Step 3: Cross multiply
280,165.11x = 420,250.54 × 80,484.99 - Step 4: Simplify right side
280,165.11x = 33,823,860,509.39 - Step 5: Solve for x
x = 33,823,860,509.39/280,165.11 - Step 6: Final answer
x = 120,728.31
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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.