Finding the Fourth Proportional to 276,048.30, 380,937.79 and 155,194.66
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Solution
The fourth proportional to 276,048.30, 380,937.79 and 155,194.66 is: 214,163.65
Step by Step Solution
- Step 1: Write the proportion equation
276,048.30 : 380,937.79 = 155,194.66 : x - Step 2: Convert to fraction form
276,048.30/380,937.79 = 155,194.66/x - Step 3: Cross multiply
276,048.30x = 380,937.79 × 155,194.66 - Step 4: Simplify right side
276,048.30x = 59,119,510,800.20 - Step 5: Solve for x
x = 59,119,510,800.20/276,048.30 - Step 6: Final answer
x = 214,163.65
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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.