Finding the Fourth Proportional to 272,877.49, 408,560.50 and 139,470.49
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Solution
The fourth proportional to 272,877.49, 408,560.50 and 139,470.49 is: 208,819.47
Step by Step Solution
- Step 1: Write the proportion equation
272,877.49 : 408,560.50 = 139,470.49 : x - Step 2: Convert to fraction form
272,877.49/408,560.50 = 139,470.49/x - Step 3: Cross multiply
272,877.49x = 408,560.50 × 139,470.49 - Step 4: Simplify right side
272,877.49x = 56,982,133,129.65 - Step 5: Solve for x
x = 56,982,133,129.65/272,877.49 - Step 6: Final answer
x = 208,819.47
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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.