Finding the Fourth Proportional to 211,170.80, 291,415.76 and 115,680.92
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Solution
The fourth proportional to 211,170.80, 291,415.76 and 115,680.92 is: 159,639.70
Step by Step Solution
- Step 1: Write the proportion equation
211,170.80 : 291,415.76 = 115,680.92 : x - Step 2: Convert to fraction form
211,170.80/291,415.76 = 115,680.92/x - Step 3: Cross multiply
211,170.80x = 291,415.76 × 115,680.92 - Step 4: Simplify right side
211,170.80x = 33,711,243,219.30 - Step 5: Solve for x
x = 33,711,243,219.30/211,170.80 - Step 6: Final answer
x = 159,639.70
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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.