Finding the Fourth Proportional to 229,779.36, 317,056.76 and 127,791.44
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Solution
The fourth proportional to 229,779.36, 317,056.76 and 127,791.44 is: 176,330.63
Step by Step Solution
- Step 1: Write the proportion equation
229,779.36 : 317,056.76 = 127,791.44 : x - Step 2: Convert to fraction form
229,779.36/317,056.76 = 127,791.44/x - Step 3: Cross multiply
229,779.36x = 317,056.76 × 127,791.44 - Step 4: Simplify right side
229,779.36x = 40,517,139,922.13 - Step 5: Solve for x
x = 40,517,139,922.13/229,779.36 - Step 6: Final answer
x = 176,330.63
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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.