Finding the Fourth Proportional to 261,563.56, 392,073.18 and 121,206.76
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Solution
The fourth proportional to 261,563.56, 392,073.18 and 121,206.76 is: 181,684.02
Step by Step Solution
- Step 1: Write the proportion equation
261,563.56 : 392,073.18 = 121,206.76 : x - Step 2: Convert to fraction form
261,563.56/392,073.18 = 121,206.76/x - Step 3: Cross multiply
261,563.56x = 392,073.18 × 121,206.76 - Step 4: Simplify right side
261,563.56x = 47,521,919,830.70 - Step 5: Solve for x
x = 47,521,919,830.70/261,563.56 - Step 6: Final answer
x = 181,684.02
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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.