Finding the Fourth Proportional to 372,108.45, 513,503.80 and 202,341.09
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Solution
The fourth proportional to 372,108.45, 513,503.80 and 202,341.09 is: 279,227.52
Step by Step Solution
- Step 1: Write the proportion equation
372,108.45 : 513,503.80 = 202,341.09 : x - Step 2: Convert to fraction form
372,108.45/513,503.80 = 202,341.09/x - Step 3: Cross multiply
372,108.45x = 513,503.80 × 202,341.09 - Step 4: Simplify right side
372,108.45x = 103,902,918,611.14 - Step 5: Solve for x
x = 103,902,918,611.14/372,108.45 - Step 6: Final answer
x = 279,227.52
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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.