Finding the Fourth Proportional to 313,630.53, 432,778.86 and 177,637.32
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Solution
The fourth proportional to 313,630.53, 432,778.86 and 177,637.32 is: 245,121.79
Step by Step Solution
- Step 1: Write the proportion equation
313,630.53 : 432,778.86 = 177,637.32 : x - Step 2: Convert to fraction form
313,630.53/432,778.86 = 177,637.32/x - Step 3: Cross multiply
313,630.53x = 432,778.86 × 177,637.32 - Step 4: Simplify right side
313,630.53x = 76,877,676,843.06 - Step 5: Solve for x
x = 76,877,676,843.06/313,630.53 - Step 6: Final answer
x = 245,121.79
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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.