Finding the Fourth Proportional to 319,170.29, 440,441.75 and 173,972.87
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Solution
The fourth proportional to 319,170.29, 440,441.75 and 173,972.87 is: 240,075.33
Step by Step Solution
- Step 1: Write the proportion equation
319,170.29 : 440,441.75 = 173,972.87 : x - Step 2: Convert to fraction form
319,170.29/440,441.75 = 173,972.87/x - Step 3: Cross multiply
319,170.29x = 440,441.75 × 173,972.87 - Step 4: Simplify right side
319,170.29x = 76,624,912,243.25 - Step 5: Solve for x
x = 76,624,912,243.25/319,170.29 - Step 6: Final answer
x = 240,075.33
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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.