Finding the Fourth Proportional to 313,632.53, 432,781.62 and 177,639.32
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Solution
The fourth proportional to 313,632.53, 432,781.62 and 177,639.32 is: 245,124.55
Step by Step Solution
- Step 1: Write the proportion equation
313,632.53 : 432,781.62 = 177,639.32 : x - Step 2: Convert to fraction form
313,632.53/432,781.62 = 177,639.32/x - Step 3: Cross multiply
313,632.53x = 432,781.62 × 177,639.32 - Step 4: Simplify right side
313,632.53x = 76,879,032,685.30 - Step 5: Solve for x
x = 76,879,032,685.30/313,632.53 - Step 6: Final answer
x = 245,124.55
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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.