Finding the Fourth Proportional to 276,318.28, 381,284.94 and 174,305.08
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Solution
The fourth proportional to 276,318.28, 381,284.94 and 174,305.08 is: 240,519.38
Step by Step Solution
- Step 1: Write the proportion equation
276,318.28 : 381,284.94 = 174,305.08 : x - Step 2: Convert to fraction form
276,318.28/381,284.94 = 174,305.08/x - Step 3: Cross multiply
276,318.28x = 381,284.94 × 174,305.08 - Step 4: Simplify right side
276,318.28x = 66,459,901,969.50 - Step 5: Solve for x
x = 66,459,901,969.50/276,318.28 - Step 6: Final answer
x = 240,519.38
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1.5x scale
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.