Finding the Fourth Proportional to 211,014.36, 316,302.84 and 131,947.08
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Solution
The fourth proportional to 211,014.36, 316,302.84 and 131,947.08 is: 197,783.87
Step by Step Solution
- Step 1: Write the proportion equation
211,014.36 : 316,302.84 = 131,947.08 : x - Step 2: Convert to fraction form
211,014.36/316,302.84 = 131,947.08/x - Step 3: Cross multiply
211,014.36x = 316,302.84 × 131,947.08 - Step 4: Simplify right side
211,014.36x = 41,735,236,133.71 - Step 5: Solve for x
x = 41,735,236,133.71/211,014.36 - Step 6: Final answer
x = 197,783.87
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1.5x scale
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.