Finding the Fourth Proportional to 208,425.77, 287,623.80 and 117,779.79
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Solution
The fourth proportional to 208,425.77, 287,623.80 and 117,779.79 is: 162,533.99
Step by Step Solution
- Step 1: Write the proportion equation
208,425.77 : 287,623.80 = 117,779.79 : x - Step 2: Convert to fraction form
208,425.77/287,623.80 = 117,779.79/x - Step 3: Cross multiply
208,425.77x = 287,623.80 × 117,779.79 - Step 4: Simplify right side
208,425.77x = 33,876,270,763.00 - Step 5: Solve for x
x = 33,876,270,763.00/208,425.77 - Step 6: Final answer
x = 162,533.99
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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.