Finding the Fourth Proportional to 208,178.92, 287,212.26 and 118,703.08
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Solution
The fourth proportional to 208,178.92, 287,212.26 and 118,703.08 is: 163,767.69
Step by Step Solution
- Step 1: Write the proportion equation
208,178.92 : 287,212.26 = 118,703.08 : x - Step 2: Convert to fraction form
208,178.92/287,212.26 = 118,703.08/x - Step 3: Cross multiply
208,178.92x = 287,212.26 × 118,703.08 - Step 4: Simplify right side
208,178.92x = 34,092,979,875.76 - Step 5: Solve for x
x = 34,092,979,875.76/208,178.92 - Step 6: Final answer
x = 163,767.69
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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.