Finding the Fourth Proportional to 211,778.36, 317,574.29 and 99,490.49
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Solution
The fourth proportional to 211,778.36, 317,574.29 and 99,490.49 is: 149,191.92
Step by Step Solution
- Step 1: Write the proportion equation
211,778.36 : 317,574.29 = 99,490.49 : x - Step 2: Convert to fraction form
211,778.36/317,574.29 = 99,490.49/x - Step 3: Cross multiply
211,778.36x = 317,574.29 × 99,490.49 - Step 4: Simplify right side
211,778.36x = 31,595,619,638.18 - Step 5: Solve for x
x = 31,595,619,638.18/211,778.36 - Step 6: Final answer
x = 149,191.92
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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.