Finding the Fourth Proportional to 178,756.80, 268,135.20 and 73,651.20
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Solution
The fourth proportional to 178,756.80, 268,135.20 and 73,651.20 is: 110,476.80
Step by Step Solution
- Step 1: Write the proportion equation
178,756.80 : 268,135.20 = 73,651.20 : x - Step 2: Convert to fraction form
178,756.80/268,135.20 = 73,651.20/x - Step 3: Cross multiply
178,756.80x = 268,135.20 × 73,651.20 - Step 4: Simplify right side
178,756.80x = 19,748,479,242.24 - Step 5: Solve for x
x = 19,748,479,242.24/178,756.80 - Step 6: Final answer
x = 110,476.80
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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.