Finding the Fourth Proportional to 236,879.49, 326,894.55 and 129,449.54
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Solution
The fourth proportional to 236,879.49, 326,894.55 and 129,449.54 is: 178,640.82
Step by Step Solution
- Step 1: Write the proportion equation
236,879.49 : 326,894.55 = 129,449.54 : x - Step 2: Convert to fraction form
236,879.49/326,894.55 = 129,449.54/x - Step 3: Cross multiply
236,879.49x = 326,894.55 × 129,449.54 - Step 4: Simplify right side
236,879.49x = 42,316,347,491.53 - Step 5: Solve for x
x = 42,316,347,491.53/236,879.49 - Step 6: Final answer
x = 178,640.82
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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.