Finding the Fourth Proportional to 171,888.16, 257,845.20 and 111,779.68
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Solution
The fourth proportional to 171,888.16, 257,845.20 and 111,779.68 is: 167,677.95
Step by Step Solution
- Step 1: Write the proportion equation
171,888.16 : 257,845.20 = 111,779.68 : x - Step 2: Convert to fraction form
171,888.16/257,845.20 = 111,779.68/x - Step 3: Cross multiply
171,888.16x = 257,845.20 × 111,779.68 - Step 4: Simplify right side
171,888.16x = 28,821,853,945.54 - Step 5: Solve for x
x = 28,821,853,945.54/171,888.16 - Step 6: Final answer
x = 167,677.95
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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.