Finding the Fourth Proportional to 274,664.70, 379,073.79 and 153,812.70
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Solution
The fourth proportional to 274,664.70, 379,073.79 and 153,812.70 is: 212,281.97
Step by Step Solution
- Step 1: Write the proportion equation
274,664.70 : 379,073.79 = 153,812.70 : x - Step 2: Convert to fraction form
274,664.70/379,073.79 = 153,812.70/x - Step 3: Cross multiply
274,664.70x = 379,073.79 × 153,812.70 - Step 4: Simplify right side
274,664.70x = 58,306,363,139.13 - Step 5: Solve for x
x = 58,306,363,139.13/274,664.70 - Step 6: Final answer
x = 212,281.97
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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.