Finding the Fourth Proportional to 421,768.98, 582,041.19 and 230,782.38
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Solution
The fourth proportional to 421,768.98, 582,041.19 and 230,782.38 is: 318,479.68
Step by Step Solution
- Step 1: Write the proportion equation
421,768.98 : 582,041.19 = 230,782.38 : x - Step 2: Convert to fraction form
421,768.98/582,041.19 = 230,782.38/x - Step 3: Cross multiply
421,768.98x = 582,041.19 × 230,782.38 - Step 4: Simplify right side
421,768.98x = 134,324,851,086.23 - Step 5: Solve for x
x = 134,324,851,086.23/421,768.98 - Step 6: Final answer
x = 318,479.68
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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.