Finding the Fourth Proportional to 355,305.40, 532,933.80 and 115,415.80
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Solution
The fourth proportional to 355,305.40, 532,933.80 and 115,415.80 is: 173,115.81
Step by Step Solution
- Step 1: Write the proportion equation
355,305.40 : 532,933.80 = 115,415.80 : x - Step 2: Convert to fraction form
355,305.40/532,933.80 = 115,415.80/x - Step 3: Cross multiply
355,305.40x = 532,933.80 × 115,415.80 - Step 4: Simplify right side
355,305.40x = 61,508,980,874.04 - Step 5: Solve for x
x = 61,508,980,874.04/355,305.40 - Step 6: Final answer
x = 173,115.81
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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.