Finding the Fourth Proportional to 319,517.91, 440,934.21 and 174,323.70
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Solution
The fourth proportional to 319,517.91, 440,934.21 and 174,323.70 is: 240,566.43
Step by Step Solution
- Step 1: Write the proportion equation
319,517.91 : 440,934.21 = 174,323.70 : x - Step 2: Convert to fraction form
319,517.91/440,934.21 = 174,323.70/x - Step 3: Cross multiply
319,517.91x = 440,934.21 × 174,323.70 - Step 4: Simplify right side
319,517.91x = 76,865,282,943.78 - Step 5: Solve for x
x = 76,865,282,943.78/319,517.91 - Step 6: Final answer
x = 240,566.43
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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.