Finding the Fourth Proportional to 372,113.20, 513,510.36 and 202,345.84
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Solution
The fourth proportional to 372,113.20, 513,510.36 and 202,345.84 is: 279,234.07
Step by Step Solution
- Step 1: Write the proportion equation
372,113.20 : 513,510.36 = 202,345.84 : x - Step 2: Convert to fraction form
372,113.20/513,510.36 = 202,345.84/x - Step 3: Cross multiply
372,113.20x = 513,510.36 × 202,345.84 - Step 4: Simplify right side
372,113.20x = 103,906,685,142.90 - Step 5: Solve for x
x = 103,906,685,142.90/372,113.20 - Step 6: Final answer
x = 279,234.07
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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.