Finding the Fourth Proportional to 211,207.92, 291,228.12 and 134,624.88
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Solution
The fourth proportional to 211,207.92, 291,228.12 and 134,624.88 is: 185,630.12
Step by Step Solution
- Step 1: Write the proportion equation
211,207.92 : 291,228.12 = 134,624.88 : x - Step 2: Convert to fraction form
211,207.92/291,228.12 = 134,624.88/x - Step 3: Cross multiply
211,207.92x = 291,228.12 × 134,624.88 - Step 4: Simplify right side
211,207.92x = 39,206,550,707.63 - Step 5: Solve for x
x = 39,206,550,707.63/211,207.92 - Step 6: Final answer
x = 185,630.12
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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.