Finding the Fourth Proportional to 252,072.21, 378,265.94 and 102,312.48
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Solution
The fourth proportional to 252,072.21, 378,265.94 and 102,312.48 is: 153,532.70
Step by Step Solution
- Step 1: Write the proportion equation
252,072.21 : 378,265.94 = 102,312.48 : x - Step 2: Convert to fraction form
252,072.21/378,265.94 = 102,312.48/x - Step 3: Cross multiply
252,072.21x = 378,265.94 × 102,312.48 - Step 4: Simplify right side
252,072.21x = 38,701,325,909.37 - Step 5: Solve for x
x = 38,701,325,909.37/252,072.21 - Step 6: Final answer
x = 153,532.70
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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.