Finding the Fourth Proportional to 313,145.97, 432,138.93 and 177,178.77
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Solution
The fourth proportional to 313,145.97, 432,138.93 and 177,178.77 is: 244,505.28
Step by Step Solution
- Step 1: Write the proportion equation
313,145.97 : 432,138.93 = 177,178.77 : x - Step 2: Convert to fraction form
313,145.97/432,138.93 = 177,178.77/x - Step 3: Cross multiply
313,145.97x = 432,138.93 × 177,178.77 - Step 4: Simplify right side
313,145.97x = 76,565,844,086.52 - Step 5: Solve for x
x = 76,565,844,086.52/313,145.97 - Step 6: Final answer
x = 244,505.28
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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.