Finding the Fourth Proportional to 163,347.84, 225,249.12 and 129,301.92
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Solution
The fourth proportional to 163,347.84, 225,249.12 and 129,301.92 is: 178,301.37
Step by Step Solution
- Step 1: Write the proportion equation
163,347.84 : 225,249.12 = 129,301.92 : x - Step 2: Convert to fraction form
163,347.84/225,249.12 = 129,301.92/x - Step 3: Cross multiply
163,347.84x = 225,249.12 × 129,301.92 - Step 4: Simplify right side
163,347.84x = 29,125,143,694.31 - Step 5: Solve for x
x = 29,125,143,694.31/163,347.84 - Step 6: Final answer
x = 178,301.37
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1.5x scale
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.