Finding the Fourth Proportional to 236,471.52, 326,329.20 and 129,039.36
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Solution
The fourth proportional to 236,471.52, 326,329.20 and 129,039.36 is: 178,073.50
Step by Step Solution
- Step 1: Write the proportion equation
236,471.52 : 326,329.20 = 129,039.36 : x - Step 2: Convert to fraction form
236,471.52/326,329.20 = 129,039.36/x - Step 3: Cross multiply
236,471.52x = 326,329.20 × 129,039.36 - Step 4: Simplify right side
236,471.52x = 42,109,311,117.31 - Step 5: Solve for x
x = 42,109,311,117.31/236,471.52 - Step 6: Final answer
x = 178,073.50
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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.