Finding the Fourth Proportional to 239,997.99, 331,197.39 and 131,103.84
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Solution
The fourth proportional to 239,997.99, 331,197.39 and 131,103.84 is: 180,923.39
Step by Step Solution
- Step 1: Write the proportion equation
239,997.99 : 331,197.39 = 131,103.84 : x - Step 2: Convert to fraction form
239,997.99/331,197.39 = 131,103.84/x - Step 3: Cross multiply
239,997.99x = 331,197.39 × 131,103.84 - Step 4: Simplify right side
239,997.99x = 43,421,249,626.98 - Step 5: Solve for x
x = 43,421,249,626.98/239,997.99 - Step 6: Final answer
x = 180,923.39
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.