Finding the Fourth Proportional to 251,989.99, 377,941.24 and 85,777.99
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Solution
The fourth proportional to 251,989.99, 377,941.24 and 85,777.99 is: 128,652.09
Step by Step Solution
- Step 1: Write the proportion equation
251,989.99 : 377,941.24 = 85,777.99 : x - Step 2: Convert to fraction form
251,989.99/377,941.24 = 85,777.99/x - Step 3: Cross multiply
251,989.99x = 377,941.24 × 85,777.99 - Step 4: Simplify right side
251,989.99x = 32,419,039,905.31 - Step 5: Solve for x
x = 32,419,039,905.31/251,989.99 - Step 6: Final answer
x = 128,652.09
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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.