Finding the Fourth Proportional to 381,304.13, 526,182.09 and 209,217.81
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Solution
The fourth proportional to 381,304.13, 526,182.09 and 209,217.81 is: 288,710.92
Step by Step Solution
- Step 1: Write the proportion equation
381,304.13 : 526,182.09 = 209,217.81 : x - Step 2: Convert to fraction form
381,304.13/526,182.09 = 209,217.81/x - Step 3: Cross multiply
381,304.13x = 526,182.09 × 209,217.81 - Step 4: Simplify right side
381,304.13x = 110,086,664,531.02 - Step 5: Solve for x
x = 110,086,664,531.02/381,304.13 - Step 6: Final answer
x = 288,710.92
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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.