Finding the Fourth Proportional to 372,044.20, 513,415.38 and 202,276.84
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Solution
The fourth proportional to 372,044.20, 513,415.38 and 202,276.84 is: 279,138.99
Step by Step Solution
- Step 1: Write the proportion equation
372,044.20 : 513,415.38 = 202,276.84 : x - Step 2: Convert to fraction form
372,044.20/513,415.38 = 202,276.84/x - Step 3: Cross multiply
372,044.20x = 513,415.38 × 202,276.84 - Step 4: Simplify right side
372,044.20x = 103,852,040,673.80 - Step 5: Solve for x
x = 103,852,040,673.80/372,044.20 - Step 6: Final answer
x = 279,138.99
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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.