Finding the Fourth Proportional to 203,115.99, 280,292.36 and 112,464.75
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Solution
The fourth proportional to 203,115.99, 280,292.36 and 112,464.75 is: 155,197.09
Step by Step Solution
- Step 1: Write the proportion equation
203,115.99 : 280,292.36 = 112,464.75 : x - Step 2: Convert to fraction form
203,115.99/280,292.36 = 112,464.75/x - Step 3: Cross multiply
203,115.99x = 280,292.36 × 112,464.75 - Step 4: Simplify right side
203,115.99x = 31,523,009,631.99 - Step 5: Solve for x
x = 31,523,009,631.99/203,115.99 - Step 6: Final answer
x = 155,197.09
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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.