Finding the Fourth Proportional to 203,195.88, 280,407.35 and 112,551.55
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Solution
The fourth proportional to 203,195.88, 280,407.35 and 112,551.55 is: 155,319.49
Step by Step Solution
- Step 1: Write the proportion equation
203,195.88 : 280,407.35 = 112,551.55 : x - Step 2: Convert to fraction form
203,195.88/280,407.35 = 112,551.55/x - Step 3: Cross multiply
203,195.88x = 280,407.35 × 112,551.55 - Step 4: Simplify right side
203,195.88x = 31,560,281,454.25 - Step 5: Solve for x
x = 31,560,281,454.25/203,195.88 - Step 6: Final answer
x = 155,319.49
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1.5x scale
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.