Finding the Fourth Proportional to 313,141.11, 432,129.18 and 190,589.15
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Solution
The fourth proportional to 313,141.11, 432,129.18 and 190,589.15 is: 263,009.65
Step by Step Solution
- Step 1: Write the proportion equation
313,141.11 : 432,129.18 = 190,589.15 : x - Step 2: Convert to fraction form
313,141.11/432,129.18 = 190,589.15/x - Step 3: Cross multiply
313,141.11x = 432,129.18 × 190,589.15 - Step 4: Simplify right side
313,141.11x = 82,359,133,829.37 - Step 5: Solve for x
x = 82,359,133,829.37/313,141.11 - Step 6: Final answer
x = 263,009.65
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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.