Finding the Fourth Proportional to 221,891.94, 306,210.92 and 119,917.06
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Solution
The fourth proportional to 221,891.94, 306,210.92 and 119,917.06 is: 165,485.56
Step by Step Solution
- Step 1: Write the proportion equation
221,891.94 : 306,210.92 = 119,917.06 : x - Step 2: Convert to fraction form
221,891.94/306,210.92 = 119,917.06/x - Step 3: Cross multiply
221,891.94x = 306,210.92 × 119,917.06 - Step 4: Simplify right side
221,891.94x = 36,719,911,901.18 - Step 5: Solve for x
x = 36,719,911,901.18/221,891.94 - Step 6: Final answer
x = 165,485.56
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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.