Finding the Fourth Proportional to 341,991.80, 512,987.70 and 263,259.80
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Solution
The fourth proportional to 341,991.80, 512,987.70 and 263,259.80 is: 394,889.70
Step by Step Solution
- Step 1: Write the proportion equation
341,991.80 : 512,987.70 = 263,259.80 : x - Step 2: Convert to fraction form
341,991.80/512,987.70 = 263,259.80/x - Step 3: Cross multiply
341,991.80x = 512,987.70 × 263,259.80 - Step 4: Simplify right side
341,991.80x = 135,049,039,304.46 - Step 5: Solve for x
x = 135,049,039,304.46/341,991.80 - Step 6: Final answer
x = 394,889.70
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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.