Finding the Fourth Proportional to 203,463.08, 280,785.99 and 112,813.75
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Solution
The fourth proportional to 203,463.08, 280,785.99 and 112,813.75 is: 155,686.82
Step by Step Solution
- Step 1: Write the proportion equation
203,463.08 : 280,785.99 = 112,813.75 : x - Step 2: Convert to fraction form
203,463.08/280,785.99 = 112,813.75/x - Step 3: Cross multiply
203,463.08x = 280,785.99 × 112,813.75 - Step 4: Simplify right side
203,463.08x = 31,676,520,479.36 - Step 5: Solve for x
x = 31,676,520,479.36/203,463.08 - Step 6: Final answer
x = 155,686.82
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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.