Finding the Fourth Proportional to 193,005.99, 289,410.21 and 80,655.51
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Solution
The fourth proportional to 193,005.99, 289,410.21 and 80,655.51 is: 120,941.99
Step by Step Solution
- Step 1: Write the proportion equation
193,005.99 : 289,410.21 = 80,655.51 : x - Step 2: Convert to fraction form
193,005.99/289,410.21 = 80,655.51/x - Step 3: Cross multiply
193,005.99x = 289,410.21 × 80,655.51 - Step 4: Simplify right side
193,005.99x = 23,342,528,086.76 - Step 5: Solve for x
x = 23,342,528,086.76/193,005.99 - Step 6: Final answer
x = 120,941.99
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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.