Finding the Fourth Proportional to 276,808.69, 381,995.99 and 149,484.28
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Solution
The fourth proportional to 276,808.69, 381,995.99 and 149,484.28 is: 206,288.31
Step by Step Solution
- Step 1: Write the proportion equation
276,808.69 : 381,995.99 = 149,484.28 : x - Step 2: Convert to fraction form
276,808.69/381,995.99 = 149,484.28/x - Step 3: Cross multiply
276,808.69x = 381,995.99 × 149,484.28 - Step 4: Simplify right side
276,808.69x = 57,102,395,528.04 - Step 5: Solve for x
x = 57,102,395,528.04/276,808.69 - Step 6: Final answer
x = 206,288.31
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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.