Finding the Fourth Proportional to 372,441.68, 513,978.72 and 202,685.12
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Solution
The fourth proportional to 372,441.68, 513,978.72 and 202,685.12 is: 279,710.47
Step by Step Solution
- Step 1: Write the proportion equation
372,441.68 : 513,978.72 = 202,685.12 : x - Step 2: Convert to fraction form
372,441.68/513,978.72 = 202,685.12/x - Step 3: Cross multiply
372,441.68x = 513,978.72 × 202,685.12 - Step 4: Simplify right side
372,441.68x = 104,175,838,540.65 - Step 5: Solve for x
x = 104,175,838,540.65/372,441.68 - Step 6: Final answer
x = 279,710.47
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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.