Finding the Fourth Proportional to 395,121.40, 545,266.50 and 213,833.68
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Solution
The fourth proportional to 395,121.40, 545,266.50 and 213,833.68 is: 295,089.92
Step by Step Solution
- Step 1: Write the proportion equation
395,121.40 : 545,266.50 = 213,833.68 : x - Step 2: Convert to fraction form
395,121.40/545,266.50 = 213,833.68/x - Step 3: Cross multiply
395,121.40x = 545,266.50 × 213,833.68 - Step 4: Simplify right side
395,121.40x = 116,596,342,275.72 - Step 5: Solve for x
x = 116,596,342,275.72/395,121.40 - Step 6: Final answer
x = 295,089.92
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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.