Finding the Fourth Proportional to 396,866.18, 595,381.26 and 130,642.67
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Solution
The fourth proportional to 396,866.18, 595,381.26 and 130,642.67 is: 195,990.99
Step by Step Solution
- Step 1: Write the proportion equation
396,866.18 : 595,381.26 = 130,642.67 : x - Step 2: Convert to fraction form
396,866.18/595,381.26 = 130,642.67/x - Step 3: Cross multiply
396,866.18x = 595,381.26 × 130,642.67 - Step 4: Simplify right side
396,866.18x = 77,782,197,474.36 - Step 5: Solve for x
x = 77,782,197,474.36/396,866.18 - Step 6: Final answer
x = 195,990.99
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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.