Finding the Fourth Proportional to 394,040.19, 590,790.21 and 141,315.23
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Solution
The fourth proportional to 394,040.19, 590,790.21 and 141,315.23 is: 211,875.99
Step by Step Solution
- Step 1: Write the proportion equation
394,040.19 : 590,790.21 = 141,315.23 : x - Step 2: Convert to fraction form
394,040.19/590,790.21 = 141,315.23/x - Step 3: Cross multiply
394,040.19x = 590,790.21 × 141,315.23 - Step 4: Simplify right side
394,040.19x = 83,487,655,354.94 - Step 5: Solve for x
x = 83,487,655,354.94/394,040.19 - Step 6: Final answer
x = 211,875.99
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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.