Finding the Fourth Proportional to 395,148.04, 545,304.96 and 213,860.12
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Solution
The fourth proportional to 395,148.04, 545,304.96 and 213,860.12 is: 295,127.32
Step by Step Solution
- Step 1: Write the proportion equation
395,148.04 : 545,304.96 = 213,860.12 : x - Step 2: Convert to fraction form
395,148.04/545,304.96 = 213,860.12/x - Step 3: Cross multiply
395,148.04x = 545,304.96 × 213,860.12 - Step 4: Simplify right side
395,148.04x = 116,618,981,455.67 - Step 5: Solve for x
x = 116,618,981,455.67/395,148.04 - Step 6: Final answer
x = 295,127.32
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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.