Finding the Fourth Proportional to 379,124.76, 523,190.16 and 209,358.84
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Solution
The fourth proportional to 379,124.76, 523,190.16 and 209,358.84 is: 288,914.09
Step by Step Solution
- Step 1: Write the proportion equation
379,124.76 : 523,190.16 = 209,358.84 : x - Step 2: Convert to fraction form
379,124.76/523,190.16 = 209,358.84/x - Step 3: Cross multiply
379,124.76x = 523,190.16 × 209,358.84 - Step 4: Simplify right side
379,124.76x = 109,534,484,997.01 - Step 5: Solve for x
x = 109,534,484,997.01/379,124.76 - Step 6: Final answer
x = 288,914.09
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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.