Finding the Fourth Proportional to 320,028.13, 441,640.29 and 174,835.99
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Solution
The fourth proportional to 320,028.13, 441,640.29 and 174,835.99 is: 241,274.47
Step by Step Solution
- Step 1: Write the proportion equation
320,028.13 : 441,640.29 = 174,835.99 : x - Step 2: Convert to fraction form
320,028.13/441,640.29 = 174,835.99/x - Step 3: Cross multiply
320,028.13x = 441,640.29 × 174,835.99 - Step 4: Simplify right side
320,028.13x = 77,214,617,326.04 - Step 5: Solve for x
x = 77,214,617,326.04/320,028.13 - Step 6: Final answer
x = 241,274.47
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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.