Finding the Fourth Proportional to 276,555.19, 381,616.95 and 155,694.28
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Solution
The fourth proportional to 276,555.19, 381,616.95 and 155,694.28 is: 214,841.66
Step by Step Solution
- Step 1: Write the proportion equation
276,555.19 : 381,616.95 = 155,694.28 : x - Step 2: Convert to fraction form
276,555.19/381,616.95 = 155,694.28/x - Step 3: Cross multiply
276,555.19x = 381,616.95 × 155,694.28 - Step 4: Simplify right side
276,555.19x = 59,415,576,266.05 - Step 5: Solve for x
x = 59,415,576,266.05/276,555.19 - Step 6: Final answer
x = 214,841.66
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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.