Finding the Fourth Proportional to 372,159.36, 513,575.10 and 202,389.84
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Solution
The fourth proportional to 372,159.36, 513,575.10 and 202,389.84 is: 279,295.36
Step by Step Solution
- Step 1: Write the proportion equation
372,159.36 : 513,575.10 = 202,389.84 : x - Step 2: Convert to fraction form
372,159.36/513,575.10 = 202,389.84/x - Step 3: Cross multiply
372,159.36x = 513,575.10 × 202,389.84 - Step 4: Simplify right side
372,159.36x = 103,942,382,316.98 - Step 5: Solve for x
x = 103,942,382,316.98/372,159.36 - Step 6: Final answer
x = 279,295.36
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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.