Finding the Fourth Proportional to 276,142.77, 381,087.99 and 155,283.48
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Solution
The fourth proportional to 276,142.77, 381,087.99 and 155,283.48 is: 214,297.37
Step by Step Solution
- Step 1: Write the proportion equation
276,142.77 : 381,087.99 = 155,283.48 : x - Step 2: Convert to fraction form
276,142.77/381,087.99 = 155,283.48/x - Step 3: Cross multiply
276,142.77x = 381,087.99 × 155,283.48 - Step 4: Simplify right side
276,142.77x = 59,176,669,273.41 - Step 5: Solve for x
x = 59,176,669,273.41/276,142.77 - Step 6: Final answer
x = 214,297.37
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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.