Finding the Fourth Proportional to 190,768.25, 263,261.21 and 119,189.79
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Solution
The fourth proportional to 190,768.25, 263,261.21 and 119,189.79 is: 164,482.55
Step by Step Solution
- Step 1: Write the proportion equation
190,768.25 : 263,261.21 = 119,189.79 : x - Step 2: Convert to fraction form
190,768.25/263,261.21 = 119,189.79/x - Step 3: Cross multiply
190,768.25x = 263,261.21 × 119,189.79 - Step 4: Simplify right side
190,768.25x = 31,378,047,739.10 - Step 5: Solve for x
x = 31,378,047,739.10/190,768.25 - Step 6: Final answer
x = 164,482.55
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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.