Finding the Fourth Proportional to 395,541.29, 545,807.88 and 221,078.84
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Solution
The fourth proportional to 395,541.29, 545,807.88 and 221,078.84 is: 305,066.94
Step by Step Solution
- Step 1: Write the proportion equation
395,541.29 : 545,807.88 = 221,078.84 : x - Step 2: Convert to fraction form
395,541.29/545,807.88 = 221,078.84/x - Step 3: Cross multiply
395,541.29x = 545,807.88 × 221,078.84 - Step 4: Simplify right side
395,541.29x = 120,666,570,244.22 - Step 5: Solve for x
x = 120,666,570,244.22/395,541.29 - Step 6: Final answer
x = 305,066.94
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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.