Finding the Fourth Proportional to 208,220.07, 287,343.80 and 112,726.79
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Solution
The fourth proportional to 208,220.07, 287,343.80 and 112,726.79 is: 155,563.02
Step by Step Solution
- Step 1: Write the proportion equation
208,220.07 : 287,343.80 = 112,726.79 : x - Step 2: Convert to fraction form
208,220.07/287,343.80 = 112,726.79/x - Step 3: Cross multiply
208,220.07x = 287,343.80 × 112,726.79 - Step 4: Simplify right side
208,220.07x = 32,391,342,200.05 - Step 5: Solve for x
x = 32,391,342,200.05/208,220.07 - Step 6: Final answer
x = 155,563.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.