Finding the Fourth Proportional to 368,578.23, 508,794.88 and 247,789.56
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Solution
The fourth proportional to 368,578.23, 508,794.88 and 247,789.56 is: 342,055.09
Step by Step Solution
- Step 1: Write the proportion equation
368,578.23 : 508,794.88 = 247,789.56 : x - Step 2: Convert to fraction form
368,578.23/508,794.88 = 247,789.56/x - Step 3: Cross multiply
368,578.23x = 508,794.88 × 247,789.56 - Step 4: Simplify right side
368,578.23x = 126,074,061,336.91 - Step 5: Solve for x
x = 126,074,061,336.91/368,578.23 - Step 6: Final answer
x = 342,055.09
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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.