Finding the Fourth Proportional to 268,756.86, 403,193.61 and 81,763.50
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Solution
The fourth proportional to 268,756.86, 403,193.61 and 81,763.50 is: 122,662.99
Step by Step Solution
- Step 1: Write the proportion equation
268,756.86 : 403,193.61 = 81,763.50 : x - Step 2: Convert to fraction form
268,756.86/403,193.61 = 81,763.50/x - Step 3: Cross multiply
268,756.86x = 403,193.61 × 81,763.50 - Step 4: Simplify right side
268,756.86x = 32,966,520,731.24 - Step 5: Solve for x
x = 32,966,520,731.24/268,756.86 - Step 6: Final answer
x = 122,662.99
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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.