Finding the Fourth Proportional to 381,684.40, 572,526.60 and 115,631.80
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Solution
The fourth proportional to 381,684.40, 572,526.60 and 115,631.80 is: 173,447.70
Step by Step Solution
- Step 1: Write the proportion equation
381,684.40 : 572,526.60 = 115,631.80 : x - Step 2: Convert to fraction form
381,684.40/572,526.60 = 115,631.80/x - Step 3: Cross multiply
381,684.40x = 572,526.60 × 115,631.80 - Step 4: Simplify right side
381,684.40x = 66,202,281,305.88 - Step 5: Solve for x
x = 66,202,281,305.88/381,684.40 - Step 6: Final answer
x = 173,447.70
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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.