Finding the Fourth Proportional to 225,780.84, 338,874.30 and 120,689.64
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Solution
The fourth proportional to 225,780.84, 338,874.30 and 120,689.64 is: 181,142.99
Step by Step Solution
- Step 1: Write the proportion equation
225,780.84 : 338,874.30 = 120,689.64 : x - Step 2: Convert to fraction form
225,780.84/338,874.30 = 120,689.64/x - Step 3: Cross multiply
225,780.84x = 338,874.30 × 120,689.64 - Step 4: Simplify right side
225,780.84x = 40,898,617,272.25 - Step 5: Solve for x
x = 40,898,617,272.25/225,780.84 - Step 6: Final answer
x = 181,142.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.