Finding the Fourth Proportional to 272,037.70, 408,056.55 and 261,669.70
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Solution
The fourth proportional to 272,037.70, 408,056.55 and 261,669.70 is: 392,504.55
Step by Step Solution
- Step 1: Write the proportion equation
272,037.70 : 408,056.55 = 261,669.70 : x - Step 2: Convert to fraction form
272,037.70/408,056.55 = 261,669.70/x - Step 3: Cross multiply
272,037.70x = 408,056.55 × 261,669.70 - Step 4: Simplify right side
272,037.70x = 106,776,035,021.54 - Step 5: Solve for x
x = 106,776,035,021.54/272,037.70 - Step 6: Final answer
x = 392,504.55
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1.5x scale
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.