Finding the Fourth Proportional to 216,356.12, 298,568.58 and 119,559.80
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Solution
The fourth proportional to 216,356.12, 298,568.58 and 119,559.80 is: 164,990.94
Step by Step Solution
- Step 1: Write the proportion equation
216,356.12 : 298,568.58 = 119,559.80 : x - Step 2: Convert to fraction form
216,356.12/298,568.58 = 119,559.80/x - Step 3: Cross multiply
216,356.12x = 298,568.58 × 119,559.80 - Step 4: Simplify right side
216,356.12x = 35,696,799,711.08 - Step 5: Solve for x
x = 35,696,799,711.08/216,356.12 - Step 6: Final answer
x = 164,990.94
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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.