Finding the Fourth Proportional to 276,170.36, 381,070.68 and 155,304.46
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Solution
The fourth proportional to 276,170.36, 381,070.68 and 155,304.46 is: 214,295.18
Step by Step Solution
- Step 1: Write the proportion equation
276,170.36 : 381,070.68 = 155,304.46 : x - Step 2: Convert to fraction form
276,170.36/381,070.68 = 155,304.46/x - Step 3: Cross multiply
276,170.36x = 381,070.68 × 155,304.46 - Step 4: Simplify right side
276,170.36x = 59,181,976,179.23 - Step 5: Solve for x
x = 59,181,976,179.23/276,170.36 - Step 6: Final answer
x = 214,295.18
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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.