Finding the Fourth Proportional to 262,495.80, 393,743.70 and 258,121.80
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Solution
The fourth proportional to 262,495.80, 393,743.70 and 258,121.80 is: 387,182.70
Step by Step Solution
- Step 1: Write the proportion equation
262,495.80 : 393,743.70 = 258,121.80 : x - Step 2: Convert to fraction form
262,495.80/393,743.70 = 258,121.80/x - Step 3: Cross multiply
262,495.80x = 393,743.70 × 258,121.80 - Step 4: Simplify right side
262,495.80x = 101,633,832,582.66 - Step 5: Solve for x
x = 101,633,832,582.66/262,495.80 - Step 6: Final answer
x = 387,182.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.