Finding the Fourth Proportional to 272,593.86, 408,890.67 and 72,909.09
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Solution
The fourth proportional to 272,593.86, 408,890.67 and 72,909.09 is: 109,363.60
Step by Step Solution
- Step 1: Write the proportion equation
272,593.86 : 408,890.67 = 72,909.09 : x - Step 2: Convert to fraction form
272,593.86/408,890.67 = 72,909.09/x - Step 3: Cross multiply
272,593.86x = 408,890.67 × 72,909.09 - Step 4: Simplify right side
272,593.86x = 29,811,846,659.19 - Step 5: Solve for x
x = 29,811,846,659.19/272,593.86 - Step 6: Final answer
x = 109,363.60
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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.