Finding the Fourth Proportional to 368,206.92, 508,187.88 and 213,135.75
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Solution
The fourth proportional to 368,206.92, 508,187.88 and 213,135.75 is: 294,163.41
Step by Step Solution
- Step 1: Write the proportion equation
368,206.92 : 508,187.88 = 213,135.75 : x - Step 2: Convert to fraction form
368,206.92/508,187.88 = 213,135.75/x - Step 3: Cross multiply
368,206.92x = 508,187.88 × 213,135.75 - Step 4: Simplify right side
368,206.92x = 108,313,004,944.71 - Step 5: Solve for x
x = 108,313,004,944.71/368,206.92 - Step 6: Final answer
x = 294,163.41
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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.