Finding the Fourth Proportional to 203,372.28, 280,670.58 and 112,756.68
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Solution
The fourth proportional to 203,372.28, 280,670.58 and 112,756.68 is: 155,613.55
Step by Step Solution
- Step 1: Write the proportion equation
203,372.28 : 280,670.58 = 112,756.68 : x - Step 2: Convert to fraction form
203,372.28/280,670.58 = 112,756.68/x - Step 3: Cross multiply
203,372.28x = 280,670.58 × 112,756.68 - Step 4: Simplify right side
203,372.28x = 31,647,482,774.47 - Step 5: Solve for x
x = 31,647,482,774.47/203,372.28 - Step 6: Final answer
x = 155,613.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.