Finding the Fourth Proportional to 313,373.88, 469,021.32 and 285,358.68
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Solution
The fourth proportional to 313,373.88, 469,021.32 and 285,358.68 is: 427,091.45
Step by Step Solution
- Step 1: Write the proportion equation
313,373.88 : 469,021.32 = 285,358.68 : x - Step 2: Convert to fraction form
313,373.88/469,021.32 = 285,358.68/x - Step 3: Cross multiply
313,373.88x = 469,021.32 × 285,358.68 - Step 4: Simplify right side
313,373.88x = 133,839,304,767.06 - Step 5: Solve for x
x = 133,839,304,767.06/313,373.88 - Step 6: Final answer
x = 427,091.45
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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.