Finding the Fourth Proportional to 293,639.99, 440,469.09 and 139,733.10
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Solution
The fourth proportional to 293,639.99, 440,469.09 and 139,733.10 is: 209,603.99
Step by Step Solution
- Step 1: Write the proportion equation
293,639.99 : 440,469.09 = 139,733.10 : x - Step 2: Convert to fraction form
293,639.99/440,469.09 = 139,733.10/x - Step 3: Cross multiply
293,639.99x = 440,469.09 × 139,733.10 - Step 4: Simplify right side
293,639.99x = 61,548,111,399.88 - Step 5: Solve for x
x = 61,548,111,399.88/293,639.99 - Step 6: Final answer
x = 209,603.99
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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.