Finding the Fourth Proportional to 263,483.64, 395,288.34 and 85,990.98
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Solution
The fourth proportional to 263,483.64, 395,288.34 and 85,990.98 is: 129,006.99
Step by Step Solution
- Step 1: Write the proportion equation
263,483.64 : 395,288.34 = 85,990.98 : x - Step 2: Convert to fraction form
263,483.64/395,288.34 = 85,990.98/x - Step 3: Cross multiply
263,483.64x = 395,288.34 × 85,990.98 - Step 4: Simplify right side
263,483.64x = 33,991,231,739.17 - Step 5: Solve for x
x = 33,991,231,739.17/263,483.64 - Step 6: Final answer
x = 129,006.99
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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.