Finding the Fourth Proportional to 395,163.09, 545,320.35 and 213,870.71
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Solution
The fourth proportional to 395,163.09, 545,320.35 and 213,870.71 is: 295,139.03
Step by Step Solution
- Step 1: Write the proportion equation
395,163.09 : 545,320.35 = 213,870.71 : x - Step 2: Convert to fraction form
395,163.09/545,320.35 = 213,870.71/x - Step 3: Cross multiply
395,163.09x = 545,320.35 × 213,870.71 - Step 4: Simplify right side
395,163.09x = 116,628,051,795.25 - Step 5: Solve for x
x = 116,628,051,795.25/395,163.09 - Step 6: Final answer
x = 295,139.03
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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.