Finding the Fourth Proportional to 209,079.24, 288,529.12 and 113,585.30
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Solution
The fourth proportional to 209,079.24, 288,529.12 and 113,585.30 is: 156,747.59
Step by Step Solution
- Step 1: Write the proportion equation
209,079.24 : 288,529.12 = 113,585.30 : x - Step 2: Convert to fraction form
209,079.24/288,529.12 = 113,585.30/x - Step 3: Cross multiply
209,079.24x = 288,529.12 × 113,585.30 - Step 4: Simplify right side
209,079.24x = 32,772,666,653.94 - Step 5: Solve for x
x = 32,772,666,653.94/209,079.24 - Step 6: Final answer
x = 156,747.59
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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.