Finding the Fourth Proportional to 168,331.12, 252,302.70 and 68,381.50
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Solution
The fourth proportional to 168,331.12, 252,302.70 and 68,381.50 is: 102,493.45
Step by Step Solution
- Step 1: Write the proportion equation
168,331.12 : 252,302.70 = 68,381.50 : x - Step 2: Convert to fraction form
168,331.12/252,302.70 = 68,381.50/x - Step 3: Cross multiply
168,331.12x = 252,302.70 × 68,381.50 - Step 4: Simplify right side
168,331.12x = 17,252,837,080.05 - Step 5: Solve for x
x = 17,252,837,080.05/168,331.12 - Step 6: Final answer
x = 102,493.45
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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.