Finding the Fourth Proportional to 203,484.12, 280,808.10 and 112,853.94
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Solution
The fourth proportional to 203,484.12, 280,808.10 and 112,853.94 is: 155,738.45
Step by Step Solution
- Step 1: Write the proportion equation
203,484.12 : 280,808.10 = 112,853.94 : x - Step 2: Convert to fraction form
203,484.12/280,808.10 = 112,853.94/x - Step 3: Cross multiply
203,484.12x = 280,808.10 × 112,853.94 - Step 4: Simplify right side
203,484.12x = 31,690,300,468.91 - Step 5: Solve for x
x = 31,690,300,468.91/203,484.12 - Step 6: Final answer
x = 155,738.45
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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.