Finding the Fourth Proportional to 272,037.80, 408,056.70 and 72,357.80
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Solution
The fourth proportional to 272,037.80, 408,056.70 and 72,357.80 is: 108,536.70
Step by Step Solution
- Step 1: Write the proportion equation
272,037.80 : 408,056.70 = 72,357.80 : x - Step 2: Convert to fraction form
272,037.80/408,056.70 = 72,357.80/x - Step 3: Cross multiply
272,037.80x = 408,056.70 × 72,357.80 - Step 4: Simplify right side
272,037.80x = 29,526,085,087.26 - Step 5: Solve for x
x = 29,526,085,087.26/272,037.80 - Step 6: Final answer
x = 108,536.70
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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.