Finding the Fourth Proportional to 381,349.26, 526,260.54 and 209,270.13
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Solution
The fourth proportional to 381,349.26, 526,260.54 and 209,270.13 is: 288,791.99
Step by Step Solution
- Step 1: Write the proportion equation
381,349.26 : 526,260.54 = 209,270.13 : x - Step 2: Convert to fraction form
381,349.26/526,260.54 = 209,270.13/x - Step 3: Cross multiply
381,349.26x = 526,260.54 × 209,270.13 - Step 4: Simplify right side
381,349.26x = 110,130,611,619.67 - Step 5: Solve for x
x = 110,130,611,619.67/381,349.26 - Step 6: Final answer
x = 288,791.99
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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.