Finding the Fourth Proportional to 272,584.48, 408,876.63 and 72,899.68
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Solution
The fourth proportional to 272,584.48, 408,876.63 and 72,899.68 is: 109,349.50
Step by Step Solution
- Step 1: Write the proportion equation
272,584.48 : 408,876.63 = 72,899.68 : x - Step 2: Convert to fraction form
272,584.48/408,876.63 = 72,899.68/x - Step 3: Cross multiply
272,584.48x = 408,876.63 × 72,899.68 - Step 4: Simplify right side
272,584.48x = 29,806,976,682.51 - Step 5: Solve for x
x = 29,806,976,682.51/272,584.48 - Step 6: Final answer
x = 109,349.50
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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.