Finding the Fourth Proportional to 217,811.12, 326,563.04 and 84,580.40
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Solution
The fourth proportional to 217,811.12, 326,563.04 and 84,580.40 is: 126,810.94
Step by Step Solution
- Step 1: Write the proportion equation
217,811.12 : 326,563.04 = 84,580.40 : x - Step 2: Convert to fraction form
217,811.12/326,563.04 = 84,580.40/x - Step 3: Cross multiply
217,811.12x = 326,563.04 × 84,580.40 - Step 4: Simplify right side
217,811.12x = 27,620,832,548.42 - Step 5: Solve for x
x = 27,620,832,548.42/217,811.12 - Step 6: Final answer
x = 126,810.94
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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.