Finding the Fourth Proportional to 230,215.74, 345,377.03 and 72,440.09
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Solution
The fourth proportional to 230,215.74, 345,377.03 and 72,440.09 is: 108,676.94
Step by Step Solution
- Step 1: Write the proportion equation
230,215.74 : 345,377.03 = 72,440.09 : x - Step 2: Convert to fraction form
230,215.74/345,377.03 = 72,440.09/x - Step 3: Cross multiply
230,215.74x = 345,377.03 × 72,440.09 - Step 4: Simplify right side
230,215.74x = 25,019,142,343.21 - Step 5: Solve for x
x = 25,019,142,343.21/230,215.74 - Step 6: Final answer
x = 108,676.94
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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.