Finding the Fourth Proportional to 356,910.05, 535,414.31 and 207,220.84
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Solution
The fourth proportional to 356,910.05, 535,414.31 and 207,220.84 is: 310,859.84
Step by Step Solution
- Step 1: Write the proportion equation
356,910.05 : 535,414.31 = 207,220.84 : x - Step 2: Convert to fraction form
356,910.05/535,414.31 = 207,220.84/x - Step 3: Cross multiply
356,910.05x = 535,414.31 × 207,220.84 - Step 4: Simplify right side
356,910.05x = 110,948,999,353.05 - Step 5: Solve for x
x = 110,948,999,353.05/356,910.05 - Step 6: Final answer
x = 310,859.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.