Finding the Fourth Proportional to 396,867.18, 595,382.76 and 130,643.67
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Solution
The fourth proportional to 396,867.18, 595,382.76 and 130,643.67 is: 195,992.50
Step by Step Solution
- Step 1: Write the proportion equation
396,867.18 : 595,382.76 = 130,643.67 : x - Step 2: Convert to fraction form
396,867.18/595,382.76 = 130,643.67/x - Step 3: Cross multiply
396,867.18x = 595,382.76 × 130,643.67 - Step 4: Simplify right side
396,867.18x = 77,782,988,821.13 - Step 5: Solve for x
x = 77,782,988,821.13/396,867.18 - Step 6: Final answer
x = 195,992.50
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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.