Finding the Fourth Proportional to 313,584.40, 432,781.68 and 177,627.52
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Solution
The fourth proportional to 313,584.40, 432,781.68 and 177,627.52 is: 245,145.92
Step by Step Solution
- Step 1: Write the proportion equation
313,584.40 : 432,781.68 = 177,627.52 : x - Step 2: Convert to fraction form
313,584.40/432,781.68 = 177,627.52/x - Step 3: Cross multiply
313,584.40x = 432,781.68 × 177,627.52 - Step 4: Simplify right side
313,584.40x = 76,873,936,519.83 - Step 5: Solve for x
x = 76,873,936,519.83/313,584.40 - Step 6: Final answer
x = 245,145.92
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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.