Finding the Fourth Proportional to 211,415.00, 317,191.61 and 78,305.00
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Solution
The fourth proportional to 211,415.00, 317,191.61 and 78,305.00 is: 117,483.09
Step by Step Solution
- Step 1: Write the proportion equation
211,415.00 : 317,191.61 = 78,305.00 : x - Step 2: Convert to fraction form
211,415.00/317,191.61 = 78,305.00/x - Step 3: Cross multiply
211,415.00x = 317,191.61 × 78,305.00 - Step 4: Simplify right side
211,415.00x = 24,837,687,630.85 - Step 5: Solve for x
x = 24,837,687,630.85/211,415.00 - Step 6: Final answer
x = 117,483.09
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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.