Finding the Fourth Proportional to 209,807.98, 289,305.88 and 141,706.74
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Solution
The fourth proportional to 209,807.98, 289,305.88 and 141,706.74 is: 195,400.54
Step by Step Solution
- Step 1: Write the proportion equation
209,807.98 : 289,305.88 = 141,706.74 : x - Step 2: Convert to fraction form
209,807.98/289,305.88 = 141,706.74/x - Step 3: Cross multiply
209,807.98x = 289,305.88 × 141,706.74 - Step 4: Simplify right side
209,807.98x = 40,996,593,117.63 - Step 5: Solve for x
x = 40,996,593,117.63/209,807.98 - Step 6: Final answer
x = 195,400.54
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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.