Finding the Fourth Proportional to 313,215.18, 432,236.94 and 169,975.23
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Solution
The fourth proportional to 313,215.18, 432,236.94 and 169,975.23 is: 234,565.81
Step by Step Solution
- Step 1: Write the proportion equation
313,215.18 : 432,236.94 = 169,975.23 : x - Step 2: Convert to fraction form
313,215.18/432,236.94 = 169,975.23/x - Step 3: Cross multiply
313,215.18x = 432,236.94 × 169,975.23 - Step 4: Simplify right side
313,215.18x = 73,469,573,291.00 - Step 5: Solve for x
x = 73,469,573,291.00/313,215.18 - Step 6: Final answer
x = 234,565.81
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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.