Finding the Fourth Proportional to 194,971.80, 292,457.70 and 121,243.80
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Solution
The fourth proportional to 194,971.80, 292,457.70 and 121,243.80 is: 181,865.70
Step by Step Solution
- Step 1: Write the proportion equation
194,971.80 : 292,457.70 = 121,243.80 : x - Step 2: Convert to fraction form
194,971.80/292,457.70 = 121,243.80/x - Step 3: Cross multiply
194,971.80x = 292,457.70 × 121,243.80 - Step 4: Simplify right side
194,971.80x = 35,458,682,887.26 - Step 5: Solve for x
x = 35,458,682,887.26/194,971.80 - Step 6: Final answer
x = 181,865.70
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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.