Finding the Fourth Proportional to 209,179.58, 288,670.05 and 113,686.28
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Solution
The fourth proportional to 209,179.58, 288,670.05 and 113,686.28 is: 156,888.28
Step by Step Solution
- Step 1: Write the proportion equation
209,179.58 : 288,670.05 = 113,686.28 : x - Step 2: Convert to fraction form
209,179.58/288,670.05 = 113,686.28/x - Step 3: Cross multiply
209,179.58x = 288,670.05 × 113,686.28 - Step 4: Simplify right side
209,179.58x = 32,817,824,131.91 - Step 5: Solve for x
x = 32,817,824,131.91/209,179.58 - Step 6: Final answer
x = 156,888.28
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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.